I Don't Know About That - Galaxies

Episode Date: August 3, 2021

In this episode, the team discusses galaxies with lecturer of astrophysics and co-host of the Cosmic Savannah podcast, Dr. Jacinta Delhaize. Follow Dr. Jacinta on Instagram, Twitter, and Facebook @jDelhaize. Make sure to check out the Cosmic Savannah podcast wherever you listen to podcasts and follow them on Instagram, Twitter, and Facebook @cosmicsavannah. To learn more, go to TheCosmicSavannah.com! Go to JimJefferies.com to buy tickets to Jim's upcoming tour, The Moist Tour.See omnystudio.com/listener for privacy information.

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You might find out and I don't know about that with Jim Jeffries Yeah, you're right Yeah, you might find out It's the United coronavirus By the time this comes out Yeah, they'll be in New York Yeah, yeah It could be American I think all of them are American yeah you might find out it's the United coronavirus by the time this comes out

yeah it could be an American I think all of them are American Jack's not here because Jack had a friend who had the coronavirus so he's isolating

for a couple of days before he sees everybody he's had a couple of clean tests he looks good hey how's it going how you feeling how you feeling

I want to plug I want to plug a few shows I'm on tour America I'm on tour, America. I'm on tour. Is this coming out before Vegas? It probably won't. Vegas was great. No.

Come and see me. Come and see me. Hey, I'm in New York coming up at the beginning of August or the end of September. The end of September, I believe. Yeah, end of September. End of September. 24th.

And in Chicago as well. Anyway, I'm all over the country. There's extra shows added. There's an extra show added in New York. There's an extra show added in LA. There's an extra show added in Minneapolis, I believe. And then there's all these different, I'm going to Oklahoma. I'm going all over the country.

Just go to jimjeffries.com and get your tickets. Some of the ticket shows are sold out. Some of them aren't. But you get your tickets while you can. And to all the people who already bought tickets, thank you. I'm looking forward to getting back on stage. I did some warm-up gigs recently, and I'm very happy with my set. I'm ready to go.

I just did a warm-up gig where my opening acts were Howie Mandel and Jay Leno. So giving those two plucky upstarts a bit of a go. Yep. You can give them a lot of exposure they need. Yeah, letting them, you know, I heard some of their stories like, how do you get up at this club? And I'm like, you'll get there.

Yeah. You crush, though. This is going to be a great tour, so get tickets. I've had a long time to work on it. Yeah. A long time. I've never had so long to. I've picked over these jokes for years now.

I've been sitting there going, when I get a chance to tell this joke, why are you on it? Oh, and I'm just piggybacking on August 18th. I'll be at the American Comedy Club in San Diego. If you go to my Instagram, Forrest Shaw, the link is in my bio to tickets. Ten bucks.

Bargain. And on August 18th I will most likely be dog sitting Forrest's dog. No, I'm just going to drive down for the night. I'll be doing nothing on our SCT. But Forest, if you want to see Forest, there'll be a lot of my shows.

We've also got Justin Martindale, Amos Gill, Lisa Curry, and Jason John Whitehead. We've got a great array of comics for you. I'm bringing a real good show

to you. The Moist Tour. Moist. It's funny because I call it The Moist Tour and then I found out that some act that had a show called The Moisture.

I was like, fuck, it's not the most original name. I just Googled what the fucking most offensive word in the English language is and I went with it. I wanted to call the show Son of a Carpenter. We've been over this. Yes. How are you, Jack? How are you?

How are you feeling? I'm feeling good. Feeling healthy. Look at your room. It looks fantastic. That's your new place you're staying in there. You've got some grateful dead pictures. You've got a couple of guitars in there.

Oh, yeah. A nice floor, like a wood floor. And it looks like a big-ass room. I've been watching all these shows. There's a show that you wanted me to watch. My wife watches that one about selling property in Sydney. Australia, why are the bedrooms so fucking small? Like America, they give you a big-ass bedroom to live in. You know what I mean? But in Australia, they give you a big ass bedroom to live in, you know what I mean?

But in Australia, they give you a big living room and small bedrooms because you're just going to sleep in there. But in houses that are worth like $40 million, they still have like, and here's the master bedroom. It's a fucking shoebox. It's a closet, yeah. I don't know why Australia has to give such small bedrooms. They have a walk-in ward. It's literally

the size of an American walk-in wardrobe. Sort it out, Australia. Anyway, Jack, what have you got for us this week? I got Life Hackets. I love Life Hackets. They're my favorite. Now, I know it'll play a song. If you want to get off work, say a friend of yours had COVID,

and then you get to stay home for a while. Life Hacket. What are Life Hackets? Jay Leno and Howie Mandel. I was giving Jack a spot as well. I said he could do five minutes at the show and then he didn't get, you know, you could have got, look, Leno doesn't book the Tonight Show anymore, so you didn't

miss out on that. You could have been a contestant on America's Got Talent. You could definitely be on Australia's Got Talent. What are Life Hackets? Life Hackets are, hacks you know life hacks just easy ways to make your life easier you know i use a bunch of life hacks in my everyday life so i just want to share with the world yeah so if you want your life to be as easy as just Here's what you do. Live hack.

I'm not able to play a theme song that one of the fans sent in, so I'm going to play one. Wait, you're going to? I'm going to play one. Here we go. If you don't have a theme song, write your own. Bring your guitar to a party. Everybody loves it when you start playing. They do.

I get requests. Always wonder why. Yeah, we get requests. Can he stop? When's he leaving? If that guy tries to kiss me, I'll vomit. That's not a request. Either was mine, but it's statements. A lot of statements.

That was a good song. Alright, why not? You got a problem in your life. There ain't no cure. Only strife. So come along with me and get some hacks from me. You're going good for this. Life hackets.

What song is that? Is that a song that I already know? I think it was. Yeah, I'm ripping off Amos Lee's Sweet Pea. All right. Who doesn't know Amos Lee? Good song. Yeah. Did you rhyme me withos Lee? Good song. Yeah.

Did you rhyme me with me, though? Yeah. Yeah. Way to go there. Beastie Boys. Yeah, I had the lyrics written out, and I blanked because I got nervous. Did you just have a song that goes, me, me, me, me, me, me, me, me? Me, me. Me, me.

Call it the Roadrunner song, and it's all fucking, it all rhymes. Wasn't bad, Jack. Good job. I thought it was pretty good. You played the guitar lovely. Yeah, you sang and played. It was good. There will be some comments like, I thought it was pretty good. You played the guitar lovely. Yeah, you sang and played. It was good. There will be some comments like, I didn't know he could sing.

He's hot now. I got to tell you this. You don't spice your posters very well. I only have, well, look, here's the thing. Why wouldn't you have them more centered in the wall? They don't, my housing managers don't let me put nails in the wall. So I had to use the Velcro, what do you call it? The scotch?

You can still put that where you want. No, I don't want him over my bed and an earthquake comes and I die. And what if he's having super rough sex and the bed's banging against the wall? Is that a single bed, Jack? Do you have a British flag? No, it's a full. It's a pillow from Jim's office.

It looked like it was single because you had a pillow in the middle. Oh, you put your Clean Dick 99 pillow on the bed. Clean Dick 99 pillow. Shout out to Caroline. Clean Dick 99. I don't know who did it, but someone made me that Clean Dick 99 Tottenham jersey, and I was wearing it around town the other day and totally forgot it said Clean Dick 99.

I'm thinking, because Elton John's doing his final concert at Dodger Stadium, his last ever, ever concert. And Jack Conway, I think we might get tickets. If I'm not gigging, I might try to go to that. And if we do, I will wear my sparkly Halloween outfit of the Elton John. I've got to do it. I will do anything to come with you guys. And I'll wear a big glasses and hat so people don't know it's me.

But you'll get a lot of comments. You'll be like, thanks. That's what I'll say when they compliment me. What do you got, Jack? jack all right first life hack hey you're in a conversation this is what he does in stand-up as well he's like don't change your voice you have a lovely speaking voice hey guys yeah yeah hey what are you fellas up to? Are you shooting dice? Fucking A. Continue on, Jack. So you're in a conversation with someone and you don't want to be in it anymore.

Just say you have to take a shit and then you go to the bathroom and leave the convo and never return. But never return? Never return to the conversation. Go talk to someone else. But your life hack is make an excuse yeah yes everyone's been about it no one's gonna question oh do you really have to

take a shit now you do have to go to the bathroom and pretend but you get out of the conversation just get a phone call that you have to take i gotta take this oh oh real how do you sell that there's no ringers not on no no one can one can prove you. No, you act like you've got a text. I've got to call someone. Sorry, there's an important thing. There's a text. I'm shocked that you didn't just say, I don't want to be here anymore.

Yeah. That's your fucking line, man. I just don't want to be around anymore. I've been on dates with girls where they've gotten a phone call from somebody, and women do this. It's a phone call they say to their friends like, I'm going on this date, ring me after 40 minutes

and so I can leave if it's not going well. And I had a girl, I was on the date with her, her phone rang and she went, no, it's going great, don't worry, it's all good. And I go, so what was that? And she goes, oh, I have a friend that is my excuse that I can leave. But I'm enjoying myself. And I thought that was fucking solid of a man to figure, I wasn't enjoying myself.

So I got a phone call five minutes later and left. Jack, why does your character that you go into sound like you just had a stroke, by the way? Stroke? Oh, I don't know. Okay, keep going. We'll see. Okay, next.

Stroke. Yeah. Av'll see. Okay, next. Stroke. Yeah. Avocados. That should be, you should be on a poster as you come into California, just with that written with your arms up. So we all like avocados. Jim, I know you're a big fan of avocados. I love an avocado.

I love an avocado. You know how you take an avocado and you cut in half you don't want the other half so you just save it for later but then it kind of turns brown well if you want that nice green so if you put it in like a tupperware full of water and you put the avocado face down it stays green for like four extra days and stays fresh oh i have a plastic thing where you put it on top of it and the rock goes in the middle of it and it makes the avocado fresh, but your one is soaking

it in water. Yes. We're not all rich, Jim. I think it could be five bucks. My wife bought it. I think my interior decorator might have put it in the house. But anyway, I thought Jack was going to go, you have that half of avocado and you don't waste it? What I do is I eat the whole thing.

That is usually what I do. You just can get the brown part off of the knife. No, the water trick really works, though. Or get a girlfriend and give her half. That's easier said than done. I wish I had a half for that department. After they hear this song. Oh, maybe. Or maybe not. They'll be upset because I might have to rhyme me with free. Anyway, Joe. easier said than done I wish I had a hat for that department after they hear this song ooh maybe

or maybe not they'll be upset because I might rhyme me with free anyway I could give you the Elton John outfit to wear to the concert

you might get a few extra you get a few extra things very hard to fuck in it's a full jumpsuit next B-Fact you know Bumblebees

oh yeah I'm surprised we didn't talk about this on our bee episode, but the way bees' eyes work is that they don't really sense movement too much. So if a bee's around and you don't want to get stung, don't move, and they won't think you're a threat because you're not moving. They're like T-Rexes. The same works for T-Rexes.

Pretty much every animal. Yeah, yeah, yeah. If you're near an animal, don't startle it. Life hack. Except for bears. Life hack. I got any, don't startle it. Life hack. Except for bears. Life hack. Okay, any more? No bears, scary bears.

Yeah, I got two more. All right. For the vinyl heads out there. Vinyl records are kind of up on the rise again. In the last decade or so, yeah. A decade. But a quick check to see if you have an original pressing of a record. It usually works out every time.

If you look on the spine or the disc, if the serial number is four letters dash four numbers, it's probably an original pressing. That only works for like older records because modern records are categorized. That's not a life hack. How does this help your life? That's a bit of information. Well, it's quick.

That's a bit of information. I think it's nice. That's a fun fact. Yeah, but wait, how does this help your life? Well, I didn't know it, and now I can just do a quick look at any of my records. I have a bunch of original pressings I had no idea. Yeah, that's a good hack. Again, but how does it help your life?

No, he knows he's got original pressings. Because now he's got original pressings. And he can brag about it. He can put that on his Bumble. Don't listen to him, Jack. You tell us the next one. The other one is... We'll edit that oneble. Don't listen to him, Jack. You tell us the next one. The other one is... We'll edit that one out.

Don't worry. I actually saw this on CSI. I didn't think it was real, but I just looked it up, and it is a real thing. If you kill someone, a good way to dispose of the body is let pigs eat it.

A really good way to clean a record is to put wood glue on it, and you kind of turn the record on and it spins and you just spray it on and then you smooth it out with some sort of card or something and then let it dry. And then when it dries, it's one solid piece of film and you peel it off and it takes up every single piece of dust that's in the groove.

That looks difficult. Wait, hold on a second. Why was that on CSI? Because they found broken bits of it and the CSIs put it back together and they did some computer analysis and were like, whoa, this is this record. Not all the crimes are big on CSI.

Sometimes they have episodes, the case of the dusty record. Or is this an original pressing? They had like 22 seasons. I feel like both the last two life hacks were about the same thing. I got another one. All right, you guys like records? Okay.

If you have records, buy a record player. It makes the whole experience better. Hey, do you guys know what headphones are out there? If you don't, you should get them. You could get two soup cans and a string and put it together. It works just as good. Yeah. If you're deaf in one ear,

just buy one ear pod and use that the whole time until that breaks and then you have a spare ear pod. Yeah, or you can put the ear pod and you stick it in an avocado

and it'll still turn brown but then it looks cool. Give me, give me, just give, I reckon I can do a Jack Hackett. All right. Life hack. Yeah, good luck. Give me a, give me a topic just i reckon i can do a jack hackett all right good luck give me a give

me a topic give me an item a household item or a food or something like that shoes shoes i got one for you fucking easy fucking easy if you want your shoes to look nice and you don't want it to be dirty don't walk in mud try to keep to hard try to keep to hard surfaces all the time. Here's another one. When you do your shoelaces up, you don't want those pesky shoelaces flipping and flopping around. They're so unsightly. What you do is you get them together with one hand and shove them down the side of the

shoe near your ankle. Wow. All right, Jack, we don't need you anymore. I guess it's nice knowing you, so hopefully you don't get COVID. Yes. Oh, wait, I don't need you anymore. I guess it's nice knowing you, so hopefully you don't get COVID. Yeah, same. Oh, wait, I got another one for you. What about when you open a bottle of wine and you don't drink at all? I'll tell you what to do with champagne.

If you want to keep bubbles in it, you put a spoon in the top, a silver spoon in the top of your champagne. You don't know about this, Kelly. I don't really drink champagne. You get a champagne bottle okay and if you want bubbles to be there

for a couple of days afterwards you drink half the champagne you get a teaspoon you drop it in the end so obviously

the big end because you couldn't put it the other way you drop it in the metallicness of the spoon does something

some something scientific and keeps the bubbles in the champagne that's a real thing there's a story about like

Noel Gallagher and Liam Gallagher so Noel Gallagher and Liam Gallagher. So Noel Gallagher told Liam Gallagher about this. He goes, you put the spoon in the top of the champagne and it keeps it fresh, right? Then he goes back to visit Liam a week later and Liam has a spoon in the top of his milk. Nice and carbonated. He was like, just keep it fresh man

you know fucking fresh milk alright let's do this podcast now ads let's read some ads yeah ads

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Are you a doctor? Well, why don't we play the theme song? Let's play the thing that we do. Without Jack, I'm at a complete loss. Jack would have been all over that, Louise. That would have been fucking nailed down. He would have corrected me. He would have looked all over that, Luis. That would have been fucking nailed down. He would have corrected me.

He would have looked at me like, do the song. Okay, so you're Dr. Jacinta. Del Hayes. Well, her first name is Jacinta and then Del Hayes. Del Hayes, Del Hayes. I don't know how that's going to help you. Well, no, I could find out maybe something. Okay, so I think you do a professional podcast

because your microphone system is the best that we've ever had. Yes, that's correct. Okay, so you're a doctor. You're in South Africa, correct? You're in South Africa. Yeah. And you're a doctor. I'm going to sound really bad here.

Do you specialize in HIV? No, I'm a doctor of sorts, but not of the medical profession. Because there's a lot of HIV in Africa. I'm saying that might be the reason she's out there. That's a good guess. I wasn't trying to sound salacious. I don't know if that's the right word for that.

Okay, so you're not a medical doctor. Are you a doctor of philosophy? Yes. Oh. You are? Well, I have a PhD. So that technically stands for doctor of philosophy.

Well, that's going to throw you off, Jim, though. Don't think about philosophy. But if you don't see the PhD, stay in the science room. Okay, so give me a hint. I gave up quick. Well, you can me a hint. I gave up quick. Well, you can have a look at what I'm wearing. I don't know if you can see my dress here.

Oh, Star Wars. You're a doctor of Star Wars? She has her doctorate in Star Wars, yes. Yeah, she might have a doctorate. Science fiction? No, but you're close. Robots. I'm also wearing a bit of a hint.

Space. Yeah, you're there. But she's got R2-D2s on her. Yeah, he's in space as well. We're going to be talking today about galaxies, Jim. Far, far away. Radio astronomy. I know about galaxies.

You don't know anything about galaxies. My wife's favorite chocolate is Galaxy. Well, then you should get this right away. This is the generic chocolate made by the Mars Company. It competes against Cadbury in the rest of the world. It's quite good, but I prefer a Cadbury block myself. Okay, let me introduce our guest. Dr. Jacinta Delhaize is a lecturer of astrophysics

at the University of Cape Town in South Africa. Originally from Australia, she obtained her PhD from the International Center for Radio Astronomy Research at the University of Western Australia. I don't want to be rude, but how is South Africa doing with the space race? Pretty good, actually. Oh, they are? We'll find out.

Have you guys got rockets and stuff? You ready to go? Well, we have a national space agency. Yeah, it's better than Australia. We have Jeff Bezos. We don't even need one. We just have one bloke with a penis-shaped rocket who's giving it a go. Alright, hold on.

She is also the co-creator, producer, and host of the Cosmic Savannah podcast, which talks about the amazing advances in astronomy coming from the African continent. So there you go. You can listen to that, Jim. You can find more at thecosmicsavannah.com and on Twitter, Facebook, and Instagram, at Cosmic Savannah.

Just to spell that. C S M I C S S. Oh crap. Let me try it again. You do it. C O S M I C S A V A N N A H. Like Savannah, like a, like a biome,

like Savannah. So, and we'll have that up there to show as well, or at J Del Hayes, J D E L H A I Z E. Thank you for being on the program, Dr. Jacinta Del Hayes. to show as well, or at JDelHaze, J-D-E-L-H-A-I-Z-E. Thank you for being on the program, Dr. Jacinta DelHaze. Thanks for having me. I don't know a lot about this topic, but I do know that I don't need to because we have

people like Jacinta. Exactly. Yeah. Well, before we start, why don't you tell us a little bit, Dr. DelHaze, about how you got to where you're at and a little bit about your podcast and yeah. Yeah, sure. um like how you got to where you're at and a little bit about your podcast and yeah yeah sure um so i'm from perth in western australia which we've just found out uh jim went to university in the area i know about perth yep uh so i'm from a town called mandra just south of perth and um yeah i've always been interested in astronomy and space stuff so

um i found out that you could do it as a job, but you could be a professional astronomer. So I went to university and got my PhD. And now I'm an expert in radio astronomy, which we'll talk about a little bit today and particularly about how galaxies have evolved or changed over the history of the universe. So yeah. And I've worked in Australia, Croatia, and now South Africa, where I've been for the last three years. And there's a lot of exciting stuff going on here. All right. Well, check out her podcast, please. The Cosmic Savannah.

Yeah, I got it right. Jeez. Terrible. All right. So I'm going to ask Jim questions about galaxies and radio astronomy. And when we're done, you're going to grade him zero through 10, 10 being the best on how he did. Just be accurate. Don't be nice not. Don't just be accurate. Don't be nice.

Yeah. Don't be nice. Everyone's too nice always. And then zero through 10 for confidence for Kelly. I would argue that some people have been mean to me and giving me poor scores when I've done rather well. And then, okay.

Zero through 10, et cetera. For me, we'll add all the scores together. If you tally 21 through 30, Jim, you're going to be guy or galaxy. It doesn't matter.

You crushed it. 11 through 20. Relax. He, going to be guy or galaxy. It doesn't matter. You crushed it. 11 through 20, relaxy. You didn't do that bad. Relaxy? Okay. Zero through 10, are you not feeling well? Maybe take some ex-laxy. I like how you're reading it.

Like, you didn't write these. You're like, I don't know. I didn't write them, but I don't know. If you're in your car at home, play along. See if you're any of these relaxy things. Relaxy guy or galaxy? Relaxy or ex-laxy. Okay.

All right, Jim, what is a galaxy? Galaxy, that's a good question. Is it? Yeah. I know we're in the Milky Way, and the galaxy is like, it's like your suburb of the universe. Yours? Well, wherever you live. Suburb of the universe. Yours? Well, wherever you live.

Suburb of the universe. We live in the Milky Way. And it's like the galaxy is like, it's a whole lot of different planets and probably some black holes and stuff like that, different things. Different things. Yeah, but it's like it's your area. It's like how I live in LA, which would be our solar system, right? But then the galaxy is including Pasadena.

The galaxy is like your state, right? So I live in California, right, which is my galaxy, but my solar system is L.A. Okay. Pasadena is Pluto. It doesn't really exist. What is the difference between a solar system, a galaxy, and a universe? Okay, so the solar system is your group of planets

that rotate around your sun, right? And so we have our- Stop talking to us like you're an alien. Your sun, your- No, no, but we don't know where this goes. This is radio stuff we're doing. We'll talk about that later. Oh, yeah, okay.

We don't know who's listening to this in other galaxies. Shalom. Anyway, so there's like a sun and then we are the planet. So that's our solar system, right? What was the next bit you want to know about? Galaxy universe. Galaxy is a collection of different suns and solar systems and stuff like that, which is within our galaxy in the Milky Way, right?

And then universe is everything. Okay. The entire universe. What is the name of our galaxy? The Milky Way. Okay. The entire universe. What is the name of our galaxy? The Milky Way. Okay. How many galaxies are there? Oh, we don't know.

It's infinite because the world is, the universe is forever expanding. And we, like, they'll say they have a good idea. I'm sure Jacinda will go fucking 72 or something. Right? But they don't know. They don't know. It's still going on. You can't see that far

okay what are the four main shapes of galaxies triangle circle rectangle and octagon yeah you got that one um what is uh how old is the universe oh as old as time. Because without it, we didn't start doing time. So you think whenever, like think for the first second, that's when the universe started. All right, I'm going to ask you. Okay, let me, I'll actually give you an answer. It's got to be billions of years. Billions.

We're going to say seven billion years. Okay, I'm going to ask you some more general questions and we're going to talk about radio astronomy. So what is dark matter? I don't know if that's general. It's more specific. Dark matter. Yeah.

I know the joke you want to make right now. I'm not going to do it. I'm not going to do it. You didn't ask what black matter is, so I'm not going to do that joke. What about blue matter? No, no. You bloody make me fall into that trap.

What is a super massive black hole? Oh, um, my asshole. Hemorrhoid surgery. No, super massive black hole is like you have your normal black hole. Okay.

Next question. It's a really, really big black hole. What is spaghettification? Oh, that's when the Italians moved out of the galaxy. And they, and they, and they ruined the neighborhood over there. So when the aliens are like, oh, it was good, but they now they're, well, the restaurants are good. I'm enjoying the food, but they're very

loud, aren't they? I thought you were going to say it's an Italian cover, a red hot chili peppers What is galactic cannibalism? Oh, that's when our galaxy eats up another galaxy through black holes. What is radio astronomy? Radio astronomy is like the movie with Jodie Foster, which is like Contact, where they're sending radio waves out into space with the hope that some alien also has a radio and they will talk back to us. The movie Contact? Yeah.

And what book? Do you know who? It was based on a book. Do you know who wrote that book? This is an extra question. It's not even there. Oh, it was based on a book by Roald Dahl. You got it.

What does a radio telescope look like? What does a radio telescope look like? Oh, it would be like a big dish, a big dish like the movie The Dish. You know about the dish in parks? Definitely. It would be like a great big satellite dish that you have like for TVs or it would be one of those ones they have like where it's a dome and they have a telescope that sticks out like Griffith Park. They have one of those. Yeah. They have one of those.

Yeah. They have one of those. Where's the radio? Oh, the radio. It's just a normal one that they attach to the side, like from radio. But it's,

it's like, but it picks up different signals. You've got to wind a little dob and the little red line goes along back and forth until you find your frequency. Name, name some radio telescopes. I don't even know why I'm asking that. I'm going to name one of them,

Brian. Yeah. The Hubble. Okay. What is the SKA and where will it be built? The what? SKA. SKA. SKA.

SKA. Well, I'm going to say it's going to be built in South Africa and it's a special telescope that Jacinda's working on. Okay, two more questions. What does a light year measure? It's very fast, a light year. It's very fast to go to light. It's distance.

It measures distance. It measures the time it takes for light to reach us. So when we look at a star or the sun or something like that, we're not looking at the light that's currently going on. Let's say that the sun takes 10 minutes to reach us, right? 10 minutes to reach us. And then sometimes you can look at a star and that star doesn't exist anymore, but we're still seeing the light traveling towards us and they can go, that's 100 light years away. And so that means the light's taking 100 years to reach us. So what does it measure?

It measures how long light takes to travel. How big is a giant radio galaxy? Oh, a lot smaller since online shopping, but they used to be everywhere. Yeah, they're out of business. They used to be like fucking Best Buy and all that kind of stuff. You're out of business everywhere. Yeah, they're out of business. They used to be like fucking Best Buy and all that type of stuff. They're out of business now.

Yeah, they're no good. But they used to kick ass. It was them and Sears. They were all in the same mall. Radio Shack, Radio Galaxy. Dr. Jacinta Del Hayes, thank you for sitting there and listening to that.

How did Jim do, zero through 10, 10 being the best? He actually did really well. I give him an 8. Yeah! Light years ahead of what Forrest thought I would do. He said my super massive back hole was his asshole.

Well, that's what he got a point off for. Also, don't think that she hasn't studied that. It's on the internet. How do you do on confidence? 10. He was very confident today. I'll give you a 10 and etc.

You get a 28 and Gaia or Galaxy, it doesn't matter. You crushed it. You crushed it. Did I get things right? I don't know. Yeah, I think so. I think the light year thing you did pretty good. I feel like you did, but I don't know. I don't know a lot of this stuff. Spaghettification was nailed it.

Okay, we'll go through. Is there something interfering with your happiness? Why'd you look at me? No, I didn't. Because you asked the question. I'm not interfering with your happiness. Uh-oh, mom and dad are right here. If anything, I bring you joy.

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He said he got a point for that. I live in LA, which is our solar system, but the galaxy includes Pasadena. I live in California, which is, all right, what is a galaxy? California. Actually, Jim got it quite right. So I'll answer the first two at the same time. So it's like solar system, then galaxy, and then universe. So yeah. So solar system is a star with all the planets going around it and then moons and everything else. And then a galaxy is a collection of millions or billions of stars and all of their solar systems, but also big collections of gas and dust and dark matter and supermassive black holes.

California. I did like your analogy. I never really thought of it that way. And then the universe is everything, just all of the galaxies inside the universe. Okay. And the name of our galaxy is, in fact, the Milky Way. I knew you got that one right. Yeah, I did.

I knew that one. But where does that name come from? It was originally a chocolate bar. Made by the people of Mars. Well, actually, if you're here in the southern hemisphere, I don't think you can see it as well from the northern hemisphere, but in the southern hemisphere, if you go out away from the cities, away from all the light, and you look up at the night sky,

you can see directly into the center of the Milky Way, and it looks like a kind of like a milky path across the sky. So I guess that's where the name came from. What is it? What makes it look like milk? No, because it's white. All the stars. All the stars kind of glow.

No, I know, but I've seen it. I've kind of seen pictures but I was wondering it kind of makes... Okay. All right. Stars.

Imagine that we're spinning in a world that's often turning, revolving at 500 miles an hour. I asked Jim how many galaxies there are. He said, we don't know, it's infinite. But he said you're going to give him some bullshit answer, like 72. Well, I will give you an answer.

It's 2 trillion galaxies. But it's close to infinite, I guess. That seems very unusual that it would be exactly 2 trillion. Like there's not 2 trillion and seven or something like that. Two trillion? No, you're right. You're right, Jim. Yeah, it's an approximation.

But that's about as close as we can get, if that's okay with you. That's okay. I'll forgive you. Two trillion. That's a lot. I don't know if you guys know at home, that's a lot.

It's everything. It's the whole universe. That's why, like, bullshit. If there is a God, right? If there is a God. If there is a God, like he gives a fuck about your prayers, right? There's two trillion galaxies he's dealing with. He's dealing with two trillion galaxies.

Like, what's Earth up to? Better check on that. When you think God has an individual planet, though, I'm not a God person, but I'm just saying if I'm for argument's sake. You think that there's a God for every different planet, then who's their God? Who's their boss? Like their middle management and they just work in one place?

Well, you would think if there was a God for Earth. Like the regional manager of space. Yeah, if there's a God for Earth, he's always bragging because I'm the God of Pluto and there's nobody there. They always go, what was before God? They go, the Big Bang. And they go, what was before the Big there. They always go, what was before God? They go, the Big Bang. And they go, what was before the Big Bang? There's always, what was before God?

So they believe, religious folk, they believe that God created the universe. And so he's done two trillion planets and he wants to check in on us and see what we're up to. I feel like Earth would be like his trashy reality TV. Like just checks in to see what the fuck we're doing here. But it's also that thing about the 2 trillion people. Of course there's other, there's probably from the sounds of it,

there's 2 trillion, that's galaxies, right? Yeah, galaxies. Okay, so inside the galaxies there's, let's say, there's like a billion planets in each galaxy as well? Well, there's about a billion or more stars and then lots of planets around those. Well, there's about a billion or more stars and then lots of planets around those. Okay, so there's like 10 billion planets in the 2 trillion.

It's just a big number, man. Yeah. And you know that there's going to be a whole lot of other, there's going to be like trillions of other planets. With people on them or life forms. I reckon most of it's mosquitoes. We've gone over this, right? That was our last episode, yeah. But I don't,

there's no chance that we're the only, the only. Yeah, we've had that. We had an aliens episode too. No way. And I'm sure, Dr. Dele,

that's how you feel. I don't want to put words in your mouth, but like there's got to be life forms, other planets or? Yeah, I mean, the chances are that there are. The chances that we've seen planets or? Yeah, I mean, the chances are that there are. The chances that we've seen them or found them, I think, are very, very slim to none or exactly zero.

But, yeah, I reckon there's something out there. It may not be like humanoid. It may not be intelligent, but probably there's something out there. Oh, I reckon it's going to be intelligent. I reckon it's the only way the human race is going to stop all racism and everything. What we need is to be invaded, and then we all have to come together like a plucky ragtag team. Get colonized by aliens. Ragtag team of humans that are going to, you know what I mean?

You would think COVID would have done it. They didn't bring the world together. No. They're further apart. Yeah, that's true. But if aliens do it, that's the only way. We'll all have to work together to stop the aliens.

And if the aliens come, it'll be the same as the white people coming to Australia in 1788. They're not going to come and go, we're just here to say hello. They'll fucking try to take us over those bloody pesky aliens. We're getting raped.

We're getting pillaged. For sure. What? Oh, we're getting raped. They're colonizers. Kelly said it's okay. Turned a bit dark. Yeah, Kelly said it's okay. Turned a bit dark. Yeah, Kelly said it's okay.

You should read a history book. What are the four main shapes of galaxies? Jim said triangle, circle, rectangle, octagon. I don't know if that's right. What is that? No, I didn't give him a point for that one. It's a bit of an old-fashioned classification system, though. I'm sorry.

But in general, there's a few different kinds. There's like spirals, which is kind of like flat, like a dinner plate, and then it has these kind of majestic spiral arms, just like the Milky Way. We think that's a spiral galaxy. And then you have elliptical galaxies, which are just kind of like big elliptical shaped. What do you call football, like soccer in the US?

Soccer. Soccer. Soccer, the one with the round ball, right? Okay. So it's like big soccer balls. Wouldn't that be called a sphere? Yep. Also a sphere.

You wouldn't call it elliptical. The other shape is a stair master. Yeah. Either like a football or a soccer ball shape. And then you've got, I think like lenticulars, which are kind of sort of like flat like a dinner plate, but they don't have the spiral arms. And then you've got irregulars, which are just like everything else.

But actually you've got this whole spectrum of things. And Jim said a circle, but you can get ring galaxies. So I guess that's kind of like a circle. It's where you've got a galaxy where another one has punched right through the middle, and so you end up with just a ring. Wait, so that's an old classification? Because when we're looking for these questions,

we're dumb, too. We're just looking shit up. You don't classify them like that anymore? Well, those are the broad classifications, but then there's a whole bunch of other ones out there we found a lot of weird stuff out there now is there a chance i think i talked about this in the other alien um this isn't an alien podcast but this is a universe one we did an alien one

is there a chance that we're just living in the stomach of a humongous animal and that's our universe and we're like because you know how like in your bowels you got all your probiotics and little animals and stuff that are like doing things to digest food and all that stuff? Is there a chance that we're just in the stomach of a bigger animal? Real question. Sure. Yeah.

Podcasting straight from the stomach of a giant animal. You said, is there a chance? And she's going to say, yeah. There is, right? There is a chance. We're a byproduct of kimchi. We've got all the stuff when you eat kimchi. You've got all the little things in you making your colon good.

We could be colon animals, man. And we're just going to get shit out one day? No, no, no, no, no, no, no, no. We're living what we think is a long amount of time. And in this monster, this big animal's life, it's not that long. Okay. Takes forever to shit. How old is the universe

jim said is all this time because without it we didn't have anything well he then said he guessed uh seven billion years which is actually a pretty good guess that's half the age so it's about 14 billion years 13.77 to be exact and how do they know that? How do you know that? Or how does anyone know that? So there's this kind of light out there in the microwave. So it's called the cosmic microwave background.

So it's like this kind of really faint glowing that you can only see with a microwave telescope up in space. And it's basically like a baby picture of the universe. So we can see a lot of details about when the universe was kind of just after it was formed. And from that, we can age it. So we know roughly how old it is. Amazing. And then people don't want to get vaccinated.

All right. I'm sorry. That's science. Have you ever been to the observatory, Jim, up there? No. I've been to the picnicatory, Jim, up there? No. I've been to the picnic, but I haven't been into it. If you go there, they have this whole thing, and you can see how much you'd weigh on each planet,

and then there's like, it's fun for kids. You should go there. All right, I don't know why I'm talking about it now. What is dark matter? Didn't even answer that one. It was problematic to answer that one. Well, I didn't give you a markdown for that, Jim, because no one actually knows what dark matter is.

Thank you. We know it's there. We know it's something like, I think it's what, 85% of the matter in the universe is actually dark. So we know it exists because we can see the effect of its gravity, but we can't actually see it because it doesn't interact with light. It doesn't interact with any kind of electromagnetic radiation. So, yeah, there's something out there and we don't know what it is.

Is there any light matter? It's in the milk. Sorry? If there's dark matter, is there any light matter? Yeah, that's all normal matter. That's how you can see me right now. It's all normal.. That's how you can see me right now. It's all normal. All matter is good.

Wait, so it's only in the Milky Way? Is that what you were saying at the last? No, it's everywhere. It is also in the Milky Way. So we know it exists, but we don't know what it is, but it's there. Exactly. Here's one for you. When I was a kid, okay, so 35 years ago,

did they believe that the Milky Way was the entire universe or was I wrong about that? I remember thinking that that was everything, was the Milky Way. And like when did they discover there was other galaxies? You're testing me here, but I think it was a bit before that. But, yeah, at one stage definitely we thought that the Milky Way was the entire universe. And you might have heard of these things called Messier objects, or maybe some of your listeners have heard of those. I haven't.

Okay. So a lot of the time when you're doing stargazing, you go outside and you look through a telescope, you might look at something called a Messier object. And this was classified by this dude called Messier. And he saw like kind of weird things out there, fuzzy patches. at something called a Messier object. And this was classified by this dude called Messier. And he saw like kind of weird things out there, fuzzy patches, and he thought they might be like nebula or something like that. It turns out there were other galaxies outside of our own galaxy, but he didn't know that our galaxy wasn't the entire universe. So, yeah, it was not too long ago, but before your time.

So we can see other galaxies just with the naked eye? Yeah, definitely. We can see them, yeah. There's like two of our neighboring galaxies, the Large Magellanic Cloud and the Small Magellanic Cloud. They're two of the closest to the Milky Way. We can go outside and see them like almost the size of your hand on the night sky down here in the southern hemisphere.

I only found out that you could see other planets recently. It's fucking slamming. Oh, you're a bachelor party. I'm a bachelor party. I didn't know that you could see other planets recently. It's fucking spammy. Oh, you're a bachelor party. I'm a bachelor party. I didn't know. Everyone's like, oh, there's Mars. We're on mushrooms. Get the fuck out of here.

You're looking at Mars. You can always see other planets when you're on mushrooms. I had no idea. Yeah, it was Mars, and I forget what else. But yeah, we were on mushrooms, so you didn't believe us either. You're like, shit. People were saying it so stupid like they were doing like Zodiac. They go, oh, Mars is really moving.

I was like, get the fuck. What are you talking about? Mars is moving. I'm looking at Mars. And especially there, because that's not like by Joshua Tree where you can see the stars better. So that's part of it. Don't you think the moon looks better in the Southern Hemisphere than it does in the Northern Hemisphere? It has more of a face. Yeah, because it's upside down, right? Yeah, it looks like it's got eyes and a mouth. It looks like a man on the moon. I told that to my wife.

I said, oh, it looks better in the southern hemisphere. We were just in Australia. And she goes, it does look more like a face down here. I'm just saying it's better. Visit Australia or South Africa. What is a supermassive black hole? Jim said, my asshole after hemorrhoid surgery. Or just any sex.

after hemorrhoid surgery? Or just any sex? Well, a black hole is, well, kind of like a stellar-sized black hole is like the corpse of a dead star, a dead massive star. So they explode at the end of their lives in these huge supernova explosions, which are really dramatic. And that's where like all of the gold and the silver, or most of it, the gold and silver on earth was formed in these like supermassive,

in these supernova explosions. And then what's left from the biggest stars, the biggest supernova is a black hole, which is basically all of the matter from the core of the star is condensed into one infinitely small point. And then this incredibly high density warps space-time around it. And so not even light can escape from around the event horizon of a black hole. And you might have seen recently, and I think it was 2019, there was the first ever

image of a black hole was taken with the Event Horizon Telescope. You might have seen it online and all the memes. It's kind of like a black circle with the red ring around the outside. So that's the first picture of a supermassive black hole. We don't actually know how the supermassive black holes form because they're millions or billions of times the mass of our sun. So we don't think they were formed from individual stars dying. They could have been formed from several different black holes merging together, colliding and forming one big one, or they could have been formed in some other way

that we don't know about yet. Now, is the... But actually... Sorry, go on. Sorry, I just wanted to add that almost all galaxies have a supermassive black hole in the centre, including our own, the Milky Way. It's called Sagittarius A star.

Now, do these... Science fiction would have me believe that if you go into the black holes are sucking things in and they can work as wormholes so you can pop in there and pop out a different section is that just bullshit or is there some truth to anything i just said yeah uh i'm glad you asked that it is bullshit oh good yeah yeah, first of all, supermassive black holes, they're not like cosmic vacuum cleaners who they're just infinitely sucking stuff. They're actually, if our own sun turned into a black hole tomorrow, the earth wouldn't move because the gravity would be the same. It's just if something gets pushed in towards the black hole

so that it spirals in inside the event horizon, that's where it'll get sucked in. So it's like those water parks. I've been listening this whole time and I can't get the idea of a supermassive black hole not being Jim's asshole so I've been listening as if it was. Before you ask the question,

remember, you said gold and silver is created by black hole? Is that? They're created in supernova explosions, part of them. And they're also created by the collision of two different black holes or two different neutron stars. Wait, gold on this planet? Yeah. Really?

Yeah, yeah. That's right. I used to think it was just because it's rare, but that makes more sense. They also invented Ikea. Oh, wow. Okay. What's a champagne supernova and does it slowly walk down the hall faster than a cannonball?

According to Oasis, yes. But is there a champagne supernova? Not that I know of. Oh, I thought that was like a supernova that just was like the Milky Way that was like champagne. I thought that was a real. No, it's on South Beach. Yeah, it's this club. I know a guy there, I thought that was like a supernova that just was like the Milky Way that was like shit. I thought that was a real term. No, it's on South Beach. Yeah, it's this club.

I know a guy there. I'll get you in. Oh, man. What's a Wonderwall? What is spaghettification? Jim said when the Italians moved out of the galaxy and ruined the name. When did they move out and ruin the name? They moved into the galaxy and spaghettified the whole place.

Hey, get rid of your cupcake stores. We're moving in pasta stores. Meatballs, they're not meatballs. Is that what it is? Dr. Del Hayes, do you want to redo your score of eight, by the way, as I'm going to examine it? I was just really enjoying that.

Well, actually, it related to the previous comment about kind of falling into a black hole spaghettification is the the theory the idea of what happens if like for example you were getting close to a black hole and you were falling in feet first the difference in the gravity between your feet and your head would be so so vast that you would actually get stretched out like a long, thin, thin strand of spaghetti. So that's why it's called spaghettification. And because you didn't see nothing, you're not going to say nothing.

All right. Let's talk about radio astronomy. Cause this is a specialty of yours, right? So what is radio astronomy? Jim said the movie with Jodie Foster, they sent radio waves out, contact. Yeah.

And then the aliens come back, long time listener, first time caller. Yeah. So the movie Contact is definitely about a radio astronomer. It's based on a real life radio astronomer. And well, the difference is that the radio telescopes, they don't send out signals. We're just collecting signals. You can send them out with telescopes like Arecibo in Puerto Rico. You've done it in the past,

but mostly we're just collecting signals from space. And actually many different things, including galaxies, release radio light. So light that we see with our eyes, that's only one type of what we call the electromagnetic spectrum. As you've got all of these different types of light, you might have heard of infrared, x-rays, gamma rays, ultraviolet. And then radio waves, radio light is actually a type of light, not a type of sound. So this is a common misconception because, you know, we've got radio stations, but they actually transmit their signals as radio waves, which are a type of light. And then they go to your receiver, which converts it into radio, into sound waves that you can hear.

But light can, radio light can actually come from things in space, such as from galaxies and from supermassive black holes. And so we use these telescopes to collect those signals and to study different aspects of the galaxies. All right. So, and Carl Sagan wrote that book, right? Yeah, exactly. That's the only one I knew the answer to. That's why I asked the question. Is Carl Sagan somebody that I should know?

He is a famous astrophysicist. He's not alive anymore sadly, but he was a very... Carl Sagan. Yeah, is that how you pronounce it? In Australia we say Sagan, not Sagan like a pagan. I think his name's Sagan though.

I don't know. You don't know? I thought he was pretty famous. Have you heard of the pale blue dot, maybe? I saw them in Vegas, not in press. I know the pale blue. That's why I thought everybody knew. But also, I went to school at Ithaca College,

which is in the same town as Cornell University, where he taught and had this really cool house. What's the pale blue dot? I've got to know what that is now. I think it's the image of when one of the spacecraft was going out of, away from the Earth throughout the solar system. Maybe it was one of the voyages and it looked back and it took a picture of the Earth and that's when we saw ourselves for the first time from not on the Earth as just like a pale blue

dot in the distance. And that kind of was, it's one of the most seen images in in history actually in terms of astronomy that one and the recent uh black hole picture yeah but he coined that phrase leave the world's around is that is carl sagan coined that phrase is that what that or is that i think so but i i'm not sure because i've heard i heard like i was at a rave one time or somewhere i don't know. And there was a DJ was playing Carl Sagan saying that. I was on drugs.

But yeah, we got that. Carl's done lefties out. Maybe it was Emma's. I don't know. So what are radio telescopes? But what do they look like? Sorry. Yeah.

So they look like a big dish. I think Jim mentioned the Parkes radio telescope. It's like a looks like a big dish um i think uh jim mentioned the parks radio telescope it's like a looks like a big satellite dish you want to make them as big as possible so that they have a more like collecting area so that you can see uh objects that are fainter um but eventually they get too big uh to build one single one and so then you have to split them up into several smaller dishes and combine the signal together with fiber optic cables. And this is called a radio interferometer. So now our big radio telescopes aren't just one giant, giant, giant dish.

They're mostly split into hundreds or tens or hundreds of smaller dishes. Who pays for these dishes? Is this a private thing? Is it donations? Or does. Who pays for these dishes? Is this a private thing? Is it donations? Or does the government pay for these? Yeah, it's usually funded on a national scale or even on an international. So when we get to talking about the SKA,

we'll find out that this is a project of more than 10 or 15 countries. So it's international. Oh, okay. That's interesting. I reckon you'd get in a few arguments like that. It's like trying to split a bill at a restaurant and you're like, fucking India didn't chip in. They're using the telescope.

They all fucking had a bit of the fucking Indian shit chip in. I know they don't drink and we all had cocktails, but why didn't they chip in on the dish? A radio interferometer. That's the same thing? Because why didn't they chip in on the dish? A radio interferometer. That's the same thing? Because I didn't ask that question. Yeah. Yeah, sorry.

I answered the two questions in one, but yeah, the radio interferometer is where you split the dish into smaller ones. I asked Jim to name some radio telescopes. He said Brian and the Hubble. Well, Hubble is kind of like an optical ultraviolet telescope. That's a satellite up in space, but the ones down here on earth, you might've heard of the Parkes telescope. Jim, I think you mentioned that your family owns some land around there. Well, I don't know if they... Well, sorry. My cousins owned all the sheep farms around where

the telescope is in parks. I visited the park telescope many, many times as a child because there's not a lot to do in parks. Apart from watching your cousin slit the throat of a sheep in front of you to scare you when you're about five, there's not much happening. God. Fun. Well, I spent a lot of my-

They're like, do you want lamb for dinner and I'm like sure alright come with me and they just pull a sheep out of the whole thing pulls a knife out of his thing and cuts it's throat it's pumping out blood and you're a kid it fucking traumatises you still eat lamb to this day but

yeah no that's a bit off target but that was horrific you worked there yeah I did quite a lot of my PhD there working there at That's a bit off target, but that was horrific. You worked there? Yeah, I did quite a lot of my PhD there, working there at night. And it wasn't quite as romantic as it sounds. There was a lot of locust swarms, a lot of the smell of the pigs or the sheep getting slaughtered, I guess. Got to be an ugly jack.

But it was cool. Yeah, and there's some other telescopes in that. There's one in the U S a big one called the VLA, the very large array. So most of these telescopes are named very literally. It's a big, it's a very large array of telescopes. Is that the one at the end of the movie contact?

There's like all these. Yeah, exactly. That's where like Jodie Foster's kind of like listening to it, which you can't listen to a radio telescope, but yeah, that's that telescope. Fucking Hollywood. It's where like Jodie Foster's kind of like listening to it, which you can't listen to a radio telescope. But yeah, that's that telescope. Fucking Hollywood.

Why is she listening to it? It's just on her iPod. Stop saying that. The Dodgers are in the night. What is the SKA and where will it be built? Jim said South Africa. And I think because you're there, he guessed that. It's a good guess.

It's 50%, right? So the SKA is the Square Kilometre Array Telescope. Where's Hartford in Zimbabwe? Kind of. So remember I said that you can split your telescope into these smaller dishes. And then the benefit of doing that is that you can spread the dishes further and further apart.

And when you combine the signals of them, the further apart these dishes, the smaller the objects that you can see and And the more of the dishes, the fainter the objects you can see. So the SKA is a mega global science project, one of the biggest ever in the world, and certainly the biggest radio telescope project in history. And it's going to be built over two continents. So half of it's going to be built in Southern Africa and the other half is going to be built in Australia. The core will be in Western Australia, where I'm from. And the idea behind this is to build an enormous telescope, which is so powerful that you can see so far into space that you're looking so far back in time

that you can maybe even see the very first stars forming after the Big Bang. Oh, wow. Yeah. So this is going to be an enormous project and it's just started construction after 30 years in the planning. And in the meantime, we've built some like precursor telescopes, some like kind of test beds.

One, a couple in Western Australia called ASCAP and the MWA, the Murchison Wide Field Array, and one here in South Africa called MEARCAT, which is a great name. And even though these are only like 1% or something like that, the size of the ultimately the SKA, they're already by far the world's most powerful radio telescopes, and we're already making some exciting discoveries with them. When will the SKA be finished, and why isn't it called Megatelescope? It probably should be called Megatelescope because originally

the idea was to have like a square kilometer of area of collecting air of metal in these dishes, but the plans had to change and the designs change and now there isn't a square kilometer, but we're kind of stuck with the name. But it just kind of means a really big, giant telescope. Why did Australia and Southern Africa get this thing? Is it like an Olympic bid where the countries wanted it or are they just the right location? Yeah, it's kind of like an Olympic bid. So different countries all around the world were

bidding to host the SKA. And then there was a long selection process over many years. But what was most important was to figure out which countries had the least RFI. This is called radio frequency interference. So things like mobile phones, TVs, people themselves, mobile phones, TVs, people themselves, anything near a city has so much of this interference that if we're trying to see a very, very faint signal from distant galaxies, obviously like a mobile phone or anything is going to just blast this telescope. So it had to be in a place that has a very large unpopulated area, very flat, geologically stable. And, of course, the Murchison area in Western Australia is perfect for this and also the Karoo area in South Africa. So that's why these sites were chosen eventually.

Is there pushback from the public? Because we all know that during COVID and all that type of stuff, people have been burning down 5G towers and stuff like that, and that's just a little tiny frequency pole in your neighborhood. Are there people who think that this is a dangerous, cancerous thing and protest against it, nut jobs like that? Do they exist? I think all sorts of people exist. At the Parkes telescope once, one of the nights that I was asleep, I wasn't observing, but my friend was observing. Someone came to the front door, knocked on it,

and said, can you please stop spying on me in my house? So, you know, you do have people with interesting ideas about what we're doing with these very expensive telescopes. But we are more concerned. We built this whole thing to spy on it. To watch you watch Jeopardy. You know what I would have said? I would have said, we're not spying on you. But we are more concerned. To watch you watch Jeopardy. You know what I would have said?

I said, we're not spying on you. Stop eating so many pies. I did eat a pie last week. Fuck. People really do think they're very important. Yeah. But I think one of the biggest misconceptions is that people think that we're collecting radiation. Well, we are collecting radiation, but that we're attracting radiation radiation because this word radiation kind of has these negative connotations you know like chernobyl and things but it's just light so even optical light that we see with our

eyes that's also radiation um so these telescopes they don't attract any extra light or radiation it's coming there anyway they're just they're just like a collecting bowl that's that's collecting it um so i think at the moment the um there's not enough kind of like um knowledge about them for it to cause any sort of controversy but also like people really love astronomy people love space everyone wants to know what's going on out there and so there's a lot of public support for it particularly in south africa and australia which is really exciting because it's going to be so i've just found out about it. And I'm like, this is one of the best things the human race has ever done. It sounds like we're going to see things from the big bang.

And when we'll be done, I know Jim asked that, but I don't think you got a chance to answer that because he asked another question. Yeah. So, I mean, the timeline's been pushed a bit,

obviously because of COVID. So it's looking like around 2025 ish that we should have some serious science operations going. So it's not too far away. And so when it gets done, are we going to find out things instantly or does it take a while for us to look at these things? Does it take years for us to look at them? Does that make sense?

Because they're so far away. Am I more? Yeah. So, no, it's a really good question. It's just a personal question. And it is quite complicated. So essentially, yeah, you look at something and you just have to do a bit of data processing. And then you just end up with a map, like a map of the sky.

And sometimes you just look at it. You're like, oh, look, there's this huge new giant radio galaxy. So my recent publication, actually, we just looked at the data and we found two that shouldn't have been there. And so, yeah, you can just like kind of write that up and you found something new but then there's other types that take a long time to study and to analyze but you don't need to wait for the light to get to you so it's already will be in the image is there a chance that this technology could get superseded really quick like you've got like a d DVD player. You've got like a video player and now you go, I've put all my money into Betamax and then VHS comes along.

Ah, fuck. Is that going to happen? Also, is there a chance that aliens are going to come down and they're going to look at it and laugh at us like we're holding a mobile phone and we're seeing someone with a tin can with a bit of string? Yeah, actually, it's a very, very good question. So the SKA was designed to not be functioning with the technology

and the computers that we had at the time that it was being designed, but to be functioning with supercomputers that we'd have in the future. So I think even now, we don't currently have the supercomputer facilities that would be big enough and powerful enough to process the data from the SKA. And so part of the role of these precursor telescopes, so like MEARCAT and ASCAP, is for us to also develop the supercomputing facilities along with it so that we can then eventually process data from the SKA. Because this is going to generate, I think it's like a year's worth of internet traffic in one day or something, or even in an hour. It's something ridiculous.

It's like an exabyte of data a day or something like that. And so we really need to develop the supercomputing facilities to match that. And of course, this is going to be a great spinoff for everything else that needs supercomputers, like match that. And, of course, this is going to be a great spin-off for everything else, everything else that needs supercomputers, you know, like modelling climate change and lots of things like that. And in terms of the aliens, if they could get here to laugh at us, then yes, they're definitely laughing at us. Yeah, yeah. I feel like Australia with their bad Wi-Fi, though,

this is going to be a problem. I feel like you have to check it out. They've got, like, four dishes and they're all connected. There will actually be hundreds of dishes, so they'll be laughing at our hundreds of dishes and our hundreds of thousands of antennas. What does a light year measure? Jim said it's very fast.

I think he did better at the end of it when he was saying you see the light and the stuff. I don't know. Well, then wait until the next question. How long light takes to travel? Yeah. Yeah, so a light year is, it's a distance. So it's how far light travels in a year.

And I wrote down the number here, but I can't remember it. So hang on, let me look it up. Okay, so it's 9.46 trillion kilometers or 5.88 trillion miles. So in a year on Earth is what we're talking about. In that time, that's how far light travels. Yeah. Yeah, exactly. That's pretty, that'd be better for traveling for gigs too.

How close are we to getting one of those things of Star Trek where you can just move from place to place? He asks this question a lot. I'm talking about giving up stand-up one day it's more the travel than the stand-up i just i don't want to travel all the time so when the transporter beam if they get the transporter i'll do comedy gigs for the rest of my life with just a and the one in your room where you walk in i know it's not your expertise but you probably know someone how long is that away yeah i'll I'll hook you up, Jim. Don't worry. Is there anyone working on that? There must be someone

working on it, right? It's the guy that came and said, stop spying on me. Does tinfoil hat stop anything? No. How big is a giant radio galaxy? Jim said a lot smaller since online shopping. Yeah, giant radio galaxy? Jim said a lot smaller since online shopping. Yeah, giant radio galaxy. It's like, what was that? What was the best buy? Something circuit.

Radio shack. No, something circuit. Circuit city. Circuit city. When I first came to America, that was everywhere, circuit city. Bought myself one of those portable PlayStations from circuit city. No more. You can't get a circuit city anymore.

Remember Ron Artest, the basketball player? I do remember. Meadowell Peace. Yeah. Meadowell Peace. Yeah, Meadowell Peace. And when he entered the NBA, he got drafted by the Bulls. He took a job at Circuit City in the summer. And then somebody found out, and they were like, you can't work here. Why are you working here?

He goes, I don't know. I just wanted to do something in the summer. He was already a millionaire. He was just working at Circuit City. Isn't that the guy the Bulls just drafted? Yeah, he wanted to have a job. Yeah, he had a job. He had a job. All right, sorry.

A giant radio galaxy. How big is it? What is it? I don't even know what it is. It's 700 kiloparsecs, greater than 700 kiloparsecs in size, which is about 22 times the size of the Milky Way. What's a kiloparsec? We don't know what a kiloparsec is.

I'm speaking for the rest of the group, but I know they don't know. You don't? What the fuck's wrong with you, Luke? It's a thousand parsecs. Did you say killer parsecs? Like that parsec is killer. I thought it was killer. Okay, so the Milky Way, the diameter of the Milky Way

is about 105,000 light years across. And so then 22 times those, that's how big a giant radio galaxy is. That's how big 700 kiloparsecs is. So these are really huge. And a giant radio galaxy is formed when you have a supermassive black hole at the center of a galaxy.

And then for some reason, you've got gas and dust falling into it. And this is, oh, did we talk about the galactic cannibalism? No, I was going to get back to that. Oh, yeah, thanks. I forgot that question. How much is a light year in miles? Is that a thing?

Yeah, it's 5.88 trillion miles. Okay, well, that's easier to do. I can drive that. Yeah, sure. Get going. Sorry, we didn't talk about galactic cannibalism. I asked Jim that question. I forgot to say it again.

He said it's when our galaxy- Let me feel that for you first. It's when two galaxies, one eats the other one up because gravity pulls them. Yeah, yeah, yeah. You nailed it, Jim. Yeah, exactly. It's when one galaxy, well, when two galaxies kind of collide together because they're drawn together due to gravity and then they smash together.

And if one is bigger than the other, then the smaller one is kind of going to get absorbed into the bigger one. And our own galaxy, the Milky Way, is actually doing that right now to our two neighboring galaxies, the Large Magellanic Cloud and the Small Magellanic Cloud. So these two are kind of trapped in a gravitational dance with the Milky Way. They're spiraling around. They're going to fall in. And eventually when they gravitational dance with the Milky Way. They're spiralling around. They're going to fall in and eventually when they do, then the Milky Way will burp. It will kind of like expand out like this and then go back in. So, yeah.

What will happen to us when that happens? Will we feel that? I suspect we'll be long gone by then because first we have to worry about our own star, the sun, turning into a red giant and gobbling us up. And, yeah, we've got other problems. This is a personal question. Do you find it hard to date because everyone else is a moron? Yeah.

I get that. I find I date people and go, that person's a moron. And I'm not you. I'm not you, you know. I mean, you must go on dates and you'd be like, yeah, the universe is big, right? And he's like, fuck this guy. No, people have lots of different expertise

in a lot of different things. That's a nice answer. Yeah. Wait, so when is just our son, when's the sun going to gobble us up? When's that happening? Oh, don't worry. We've got millions of years. We're fine.

Okay. But eventually that'll be, someone will be like, yeah, you want to. You die and you die. Okay. Okay. I think we did all the questions, right? Yeah. This is a part of the show when, and we've learned everything you need to know about galaxies,

everybody, by the way, there's no other questions about radio astronomy. I don't know if there's anything else you want to say, but we do have this part of the dinner party facts where we ask our guests to provide something cool or interesting that to give our listeners at home or in their cars so they can impress people about this subject. Okay.

Well, I think we've, we've talked a lot about galaxies and you were asking about the Milky Way at the start and like why it's called the Milky Way. And we said that there was like kind of fuzzy light coming from all the stars and it looks like, you know, like a milky streak in the sky. But an interesting fact is that the indigenous people of Australia, the Aboriginal people, they didn't actually look at the patterns of the stars, of the light. They looked at the patterns of the stars, of the light. They looked at the patterns of the dust. So the dark bits that are kind of like highlighted against the stars. And if you look really carefully on a dark night in the Southern Hemisphere, right into

the center of the Milky Way, you'll see this like kind of dark patch going through. And that's dust clouds that are blocking the background light. And if you trace around it, it actually looks like an emu lying lying down and so they used to call it the emu in the sky yeah that's gonna go with the emu in the sky that's where i go when i die oh i didn't know those were the words well thank you for being here dr j Jacinta Delhaize that was amazing while we were listening to you I took my phone and I subscribed

to the Cosmic Savannah podcast so everybody at home should do that as well if you want to learn more about stuff like this and go give her five stars and write a review because that really

really helps podcasts yeah and you can follow them on Twitter Facebook Instagram at Cosmic Savannah or if you just want to follow Dr. Jacinta Delhaize, at JDelhaize,

and we'll have that all on our linked up. Well, thank you for being on the podcast, Jacinta. I'd like to say it was things that I didn't already know, but I did. So thank you for confirming what I already thought. Appreciate it. Thanks for having me. It was so fun. Thanks, man. Ladies and gentlemen, if you're ever at a party what I already thought. Appreciate it. Thanks for having me. It was so fun. Thanks.

But ladies and gentlemen, if you're ever at a party and someone says the universe is two trillion fucking galaxies or something like that, you go, oh, it's probably close. And then you go, I don't know about that and walk away. Good night, Australia.