Artemis Updates, The Brain Nebula & Mapping the Galactic Center | Space Nuts: Astronomy Insights...


Artemis Updates, the Brian Nebula, and Galactic Mapping
In this enlightening episode of Space Nuts , hosts Andrew Dunkley and Professor Fred Watson dive into the latest developments in space exploration and celestial phenomena. From the shifting timelines of the Artemis program to the fascinating discoveries made by the James Webb Space Telescope, this episode is packed with cosmic insights and intriguing discussions.
Episode Highlights:
- Artemis Program Updates: Andrew and Fred discuss the recent delays in the Artemis 2 mission, which is now expected to launch no earlier than April. They also explore the implications of the newly inserted Artemis 3 mission, which will focus on testing spacecraft capabilities in Earth orbit before the lunar landing.
- The Brian in Space: The hosts delve into the discovery of the PMR1 nebula, also known as the Exposed Cranium Nebula. They discuss its unusual appearance and the significance of the James Webb Space Telescope's observations that reveal this nebula's intricate structure, reminiscent of a brain.
- Mapping the Galactic Center: Andrew and Fred highlight a groundbreaking survey of the center of our galaxy, revealing the complex dynamics and chemical compositions within this turbulent region. They discuss the technologies used in this research and what it means for our understanding of the Milky Way.
For more Space Nuts, including our continuously updating newsfeed and to listen to all our episodes, visit our website. (https://www.spacenutspodcast.com/) Follow us on social media at SpaceNutsPod on Facebook, Instagram, and more. We love engaging with our community, so be sure to drop us a message or comment on your favorite platform.
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Stay curious, keep looking up, and join us next time for more stellar insights and cosmic wonders. Until then, clear skies and happy stargazing.
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Episode link: https://play.headliner.app/episode/32036521?utm_source=youtube
Kind: captions
Language: en
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Hi there. Thanks for joining us again.
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This is Space Nuts. My name is Andrew
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Dunley. It's great to have your company.
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We're um going to talk about a lot of
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things today and one of them is the
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Arteimus program. Now, we did talk about
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it um very recently because things had
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changed. The Arteimus 2 launch was set
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back and it looks like they're actually
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going to take the Artemis 2 rocket back
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to the assembly building now. and
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they're not anticipating an Artemis 2
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launch to send humans around the moon
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and back until at least April. But
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that's not what we're going to talk
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about. We'll explain that shortly. Uh
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we're going to look at the new Cranium
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Nebula. This one sounds quite
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unbelievable. Um a brain in space could
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be. And the center of our galaxy has
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been mapped in detail. What's it look
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like? We will tell you on this episode
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of Space Nuts.
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>> 15 seconds. Guidance is internal. 10 9
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Ignition sequence start.
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>> Space Nuts.
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>> 5 4 3 2
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>> 1 2 3 4 5 5 4 3 2 1
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>> Space Nuts.
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>> Astronauts report. It feels good.
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>> Joining us once again is Professor Fred
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Watson, astronomer at large. Hi Fred.
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>> Hello Andrew. Good to see you back from
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your sodome. Yes. Yes. Um, I won't dwell
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on it too much. I'm sure people have
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seen the photos on Facebook if they care
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to look uh on on my page. I didn't put
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them on the space page, but uh yeah, we
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went to Borneo for a couple of weeks.
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Uh, and we saw some amazing wildlife.
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Uh, orangutang, uh, sunbears,
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uh, proboscus monkeys, civets, you know,
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you know about the civet, they eat the
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eat the coffee berry and poo out the
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bean and then they collect the beans and
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turn them into coffee.
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Yeah, we saw some of those. Uh, didn't
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try the coffee. Um, what else? Oh,
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Macack Monkeys. I even managed 18 holes
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at a a rather nice resort golf course.
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Um, and I paid the price for that
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because it was a pretty ordinary game,
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but I enjoyed the course. Beautiful.
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Although
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>> the greens in do are better than that.
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>> There you go.
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>> Much better.
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>> It's our superintendent was very pleased
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to hear when I saw him the other day.
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Um, but yeah, incredible country. I
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think um I don't know if you can see the
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map behind me, Fred. See that?
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>> I can. Yes, you can see.
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>> That is the map of the Sandakin death
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march uh in World War II. Uh Australian
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and English military personnel that have
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been captured by the Japanese were sent
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to Borneo uh to build an airport. And
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when it looked like the war was lost to
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Japan, they were ordered to kill all
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prisoners. and they force marched 1,800
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Australians from Sandakan to uh a um a a
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a place called Rena in northern Borneo.
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Uh of those 1800,
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six survived. Uh it's a terrible
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tragedy. It's um Australia's worst
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um atrocity in terms of uh of war. Uh
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and not many people know about it. They
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know all about Gallipoli. They know all
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about uh some of the major battles of
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World War I and World War II. Um the
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rats of Tbrook. It all goes down in
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folklore. But this is one of the
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probably one of the most forgotten
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elements of Australian military history
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and really and I would encourage people
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to go and read about it. um I knew about
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it, but um it's it's not well publicized
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and I think it's a tragedy that we tend
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to put this stuff at the at the back of
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our minds. Um and and should never be
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forgotten what happened over there. Uh
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so we we've basically on the tour
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followed the the route of the the death
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march. Not intentionally, it was just
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the way the road went, but um uh went to
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the memorials and um and and read all
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the names. uh hundreds and hundreds of
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names. Uh the British suffered
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similarly. Uh there were 600 British
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that were captured and basically left to
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die. It was just just horrible, Fred.
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Horrible.
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>> But the wildlife and the rainforest and
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the rivers and and the people
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magnificent. Highly recommend Borneo.
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Highly recommend it. Now, you were up
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late last night, weren't you?
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>> I was. Yeah. There was u because of the
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total eclipse of the moon
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>> which um we I know you didn't get to see
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because you had 88 cloud in do I know
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that because the Anglo Australian
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telescope not very far away from you got
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no observations last night of any kind
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but in Sydney uh we've had cloudy
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weather for weeks. Um but the the clouds
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the clouds broke uh and uh so we saw the
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eclipse and um that was Jordi of course
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>> uh that just chimed in there. But uh we
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actually have Jord's sister staying with
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us for a little while. Uh so um yeah,
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this is going to probably for the next
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few weeks we'll have uh the terrible
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duo. They're more or less identical.
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One's a little bit fatter than the
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other. I won't mention which is which,
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but um yeah. And so they Yes. She
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arrived, Rosie arrived today. Uh but
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yeah, that's nothing to do with the
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eclipse. Uh we did see the blood moon.
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It was a total eclipse of the moon. So
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that the earth, the moon was well
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immersed in the shadow of the earth. Uh
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we had about an hour of totality. Uh and
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during that time, the clouds came and
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went a bit, but we got uh really good
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view of the that blood moon phenomenon
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caused by scattering of light from the
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earth's atmosphere, scattering of
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sunlight. Yes. So it was it was good.
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But it was, as you've just said, a late
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night and I'm just catching up
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basically.
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>> Yeah, fair enough. Yeah, it's quite a
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spectacle, a blood moon. I'm sorry I
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missed it, but uh you can't help the
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weather.
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>> Um which reminds me, we also had to deal
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with flooding at the end of the monsoon
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while we were overseas. So, uh that was
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fun driving through flood waters. They
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wouldn't let you do that in Australia,
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but we weren't in Australia, were we?
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So, yeah. Uh we should get down to it,
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Fred. There's a lot to talk about. And
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our first subject is yet again the
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Arteimus missions. And I mentioned at
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the beginning that Artemis 2's been put
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back in the shed and probably won't
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launch those astronauts until at least
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April. But we are now talking about
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Arteimus 3. Now this was the mission
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that was slated for initially 2027, then
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pushed back to probably 2028
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to put people on the moon.
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Uh there's been several changes. It
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looks like they won't be doing that and
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they might not be using SpaceX
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>> the way things are shaping up.
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>> Uh that's right. So um this was uh an
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announcement last week uh at the time
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we're recording. Uh and you're quite
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right. What has happened is that there's
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been a major update to the Arteimus
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program uh with an extra mission slotted
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in. M
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>> um so Arteimus 3 exactly as you've said
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was originally going to be the lunar
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landing uh uh mission uh sometime after
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2027.
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Uh but what they have uh what NASA has
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done is uh inserted
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another mission which is now Arteimus 3
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which will not land on the moon. Uh it
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will be a spacecraft uh that will simply
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go into earth orbit. Uh and uh what it
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will do is essentially
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replicate in a sense what Apollo 9 did
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um after the Apollo 8 mission. Uh it
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it's to check that you can rendevu with
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the equipment. You can do the necessary
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steps that need to be taken in space. uh
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which um have not yet been tried and
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tested because Artemis 2 uh will simply
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involve the uh the Orion capsule
00:08:08.319 --> 00:08:10.790
containing the four astronauts. Uh what
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that will do is uh it will accelerate up
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to the 11 kilometers/s needing to get to
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the moon, go around the moon and then
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come back again without um any of the
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kind of technical details involved with
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first of all refueling uh spacecraft in
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space. That's one of the things that's
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part of the Arteimus program, but also
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>> doing the rendevous uh and turning
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spacecraft around and things of that
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sort. It's a bit like in the Apollo
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missions where you had to turn the um
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turn the uh lunar module around to dock
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with the with the crew module with the
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the basically the the crew capsule. So
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all of that is now being slotted into
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Apollo sorry beyond Arteimus 3 with the
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landing itself uh actually forecast for
00:09:00.160 --> 00:09:02.630
Arteimus 4 and one of the reasons for
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this is the fact that there is still a
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lot of work to do on the landing
00:09:09.920 --> 00:09:13.430
vehicle. Now um back in the day some
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years ago uh NASA contracted both SpaceX
00:09:17.279 --> 00:09:20.790
and Blue Origin uh the two companies led
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by the two billionaires Elon Musk and
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Jeff Bezos. Uh those two companies were
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tasked with developing a a crew lander
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uh vehicle to land on the moon. Uh the
00:09:32.399 --> 00:09:36.150
favored version was uh Elon Musk's uh
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Starship uh the top end of a Starship um
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which would which uh was originally
00:09:43.040 --> 00:09:46.389
going to be the Arteimus 3 lander. Now
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the lander landing has been pushed back
00:09:48.160 --> 00:09:51.269
to Artemis 4, but the the gate is now
00:09:51.279 --> 00:09:55.509
still open for the BA Bezos company uh
00:09:55.519 --> 00:09:59.350
to further develop its own lunar landing
00:09:59.360 --> 00:10:02.150
module uh which has been under test for
00:10:02.160 --> 00:10:05.670
quite a while and is so in a sense is a
00:10:05.680 --> 00:10:09.110
competitor uh to SpaceX. So the two the
00:10:09.120 --> 00:10:10.949
two programs are running side by side
00:10:10.959 --> 00:10:13.430
and NASA will eventually have to make a
00:10:13.440 --> 00:10:15.829
choice as to which one they go with. Uh
00:10:15.839 --> 00:10:18.550
if I may, there's a very nice quote from
00:10:18.560 --> 00:10:20.550
uh NASA,
00:10:20.560 --> 00:10:23.030
a NASA associate administrator, a very
00:10:23.040 --> 00:10:25.829
senior person in NASA uh who says, "We
00:10:25.839 --> 00:10:27.670
are looking back to the wisdom of the
00:10:27.680 --> 00:10:30.069
folks that designed Apollo. The entire
00:10:30.079 --> 00:10:31.910
sequence of Arteimus flights needs to
00:10:31.920 --> 00:10:34.069
represent a stepbystep buildup of
00:10:34.079 --> 00:10:36.389
capability with each step bringing us
00:10:36.399 --> 00:10:38.150
closer to our ability to perform the
00:10:38.160 --> 00:10:40.550
landing missions. Each step needs to be
00:10:40.560 --> 00:10:42.470
big enough to make progress, but not so
00:10:42.480 --> 00:10:45.030
big that we take unnecessary risk given
00:10:45.040 --> 00:10:47.350
previous learnings. Therefore, we want
00:10:47.360 --> 00:10:49.430
to fly the landing missions in as close
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to the same earth ascent configuration
00:10:52.079 --> 00:10:54.389
as possible, which means using an upper
00:10:54.399 --> 00:10:56.150
stage and pad system as close to the
00:10:56.160 --> 00:10:57.910
block one configuration as possible.
00:10:57.920 --> 00:11:00.230
That's the basic the basic uh space
00:11:00.240 --> 00:11:03.269
launch system configuration. Uh so we
00:11:03.279 --> 00:11:05.509
will see what happens. Uh you're right
00:11:05.519 --> 00:11:09.590
that um Artemis 2 uh the that the uh the
00:11:09.600 --> 00:11:11.269
stack is currently back in the vehicle
00:11:11.279 --> 00:11:14.389
assembly building for checks on the
00:11:14.399 --> 00:11:16.310
upper stage. That's the second stage
00:11:16.320 --> 00:11:19.030
that will actually push the spacecraft
00:11:19.040 --> 00:11:22.069
into a lunar trajectory. Uh there were
00:11:22.079 --> 00:11:26.710
issues with the helium uh mechanism for
00:11:26.720 --> 00:11:28.470
that upper stage. You might remember we
00:11:28.480 --> 00:11:31.030
did talk about that before. Uh that's
00:11:31.040 --> 00:11:34.150
now being fixed. uh and we have a date
00:11:34.160 --> 00:11:37.269
no sooner than April the 6th for uh a
00:11:37.279 --> 00:11:39.190
launch of Otimus 2. So we'll look out
00:11:39.200 --> 00:11:41.269
for that. But yes, a major change in the
00:11:41.279 --> 00:11:43.750
in the strategy which makes a lot of
00:11:43.760 --> 00:11:45.670
sense.
00:11:45.680 --> 00:11:48.710
>> Yeah, I think it does. Uh and copying a
00:11:48.720 --> 00:11:50.389
successful series like the Apollo
00:11:50.399 --> 00:11:51.829
missions, notwithstanding what happened
00:11:51.839 --> 00:11:54.389
to Apollo 13, but that wasn't that that
00:11:54.399 --> 00:11:56.949
was unforeseen. It was just a a quirk
00:11:56.959 --> 00:11:58.150
really.
00:11:58.160 --> 00:12:02.389
>> Uh and everyone got home. But um yeah,
00:12:02.399 --> 00:12:03.990
what what I find interesting is those
00:12:04.000 --> 00:12:06.150
Apollo missions went back to back to
00:12:06.160 --> 00:12:08.150
back to back to back really fast. Uh
00:12:08.160 --> 00:12:08.870
these ones
00:12:08.880 --> 00:12:11.910
>> seem to be much more elongated in their
00:12:11.920 --> 00:12:14.710
in their um mission dates, don't they?
00:12:14.720 --> 00:12:16.550
>> They do. Um and that's partly because
00:12:16.560 --> 00:12:19.030
the technology is now far more complex
00:12:19.040 --> 00:12:21.670
because the these missions are not just
00:12:21.680 --> 00:12:23.990
to achieve boots on the ground. Uh it's
00:12:24.000 --> 00:12:27.030
all about setting up science, you know,
00:12:27.040 --> 00:12:29.590
a kind of almost permanent presence on
00:12:29.600 --> 00:12:31.829
on the moon. Um the the ultimate
00:12:31.839 --> 00:12:35.190
schedule uh again this came out of the
00:12:35.200 --> 00:12:37.430
recent press releases uh and press
00:12:37.440 --> 00:12:39.269
conferences. The ultimate schedule is
00:12:39.279 --> 00:12:42.150
one Arteimus mission per year once we
00:12:42.160 --> 00:12:44.629
have start once the the first lunar
00:12:44.639 --> 00:12:46.389
landing has taken place. There'll be one
00:12:46.399 --> 00:12:49.030
a year. Now that is much slower than the
00:12:49.040 --> 00:12:51.670
Apollo cadence. They were one every few
00:12:51.680 --> 00:12:54.949
months. Um I think so Apollo 11 was
00:12:54.959 --> 00:12:59.670
July. Apollo 12 was uh was November.
00:12:59.680 --> 00:13:01.430
Can't remember when Apollo 13 was but
00:13:01.440 --> 00:13:03.910
you get that you know the the intervals
00:13:03.920 --> 00:13:05.350
were a few months rather than a few
00:13:05.360 --> 00:13:06.150
years.
00:13:06.160 --> 00:13:06.629
>> Yeah.
00:13:06.639 --> 00:13:10.310
>> Um I guess another reason for um not
00:13:10.320 --> 00:13:12.870
just not just the the scientific reasons
00:13:12.880 --> 00:13:15.430
for for making it a spacing of one year
00:13:15.440 --> 00:13:17.190
but that each of these is a very
00:13:17.200 --> 00:13:20.069
expensive venture. Uh, I've seen a
00:13:20.079 --> 00:13:22.470
figure quoted of $4 billion per launch
00:13:22.480 --> 00:13:25.829
for an Arteimus mission, which is eye
00:13:25.839 --> 00:13:27.509
watering. That's right.
00:13:27.519 --> 00:13:29.509
>> Yeah. Yeah. Did they hit you up for a
00:13:29.519 --> 00:13:32.550
loan for it?
00:13:32.560 --> 00:13:34.230
>> I think Yeah, I could probably muster a
00:13:34.240 --> 00:13:36.470
few dollars there, you know.
00:13:36.480 --> 00:13:38.310
>> Yeah. Uh, it's funny when you talk about
00:13:38.320 --> 00:13:40.310
the advances in technology because um,
00:13:40.320 --> 00:13:42.790
I'm holding my mobile phone in my hand
00:13:42.800 --> 00:13:45.829
right now. It's got a hell of a lot more
00:13:45.839 --> 00:13:47.829
computer power than the computer on
00:13:47.839 --> 00:13:49.590
Apollo 11.
00:13:49.600 --> 00:13:51.590
>> That's right. Sadly, it's also invisible
00:13:51.600 --> 00:13:53.269
uh because of your background.
00:13:53.279 --> 00:13:54.470
>> Is that better?
00:13:54.480 --> 00:13:56.550
>> No. No.
00:13:56.560 --> 00:13:56.790
>> Yeah.
00:13:56.800 --> 00:13:57.670
>> It just disappears.
00:13:57.680 --> 00:13:58.629
>> You know what it looks like.
00:13:58.639 --> 00:13:59.829
>> You know what it looks like. That's
00:13:59.839 --> 00:14:01.590
right. Yeah. But but you're absolutely
00:14:01.600 --> 00:14:03.350
right. Yes. Um
00:14:03.360 --> 00:14:05.910
>> it's it's quite amazing. Not many people
00:14:05.920 --> 00:14:07.509
probably realize they're packing a lot
00:14:07.519 --> 00:14:09.189
more power than the Apollo missions
00:14:09.199 --> 00:14:11.350
carried. So yeah, it's all in your
00:14:11.360 --> 00:14:13.430
pocket. Uh if you'd like to read about
00:14:13.440 --> 00:14:17.509
the latest in regard to uh the Artemis
00:14:17.519 --> 00:14:18.949
missions, you can do that at the
00:14:18.959 --> 00:14:20.629
universetoday.com
00:14:20.639 --> 00:14:22.629
website, but NASA will have it on their
00:14:22.639 --> 00:14:25.189
website and many others as well. This is
00:14:25.199 --> 00:14:27.030
Space Nuts with Andrew Dunley and
00:14:27.040 --> 00:14:34.230
Professor Fred Watson.
00:14:34.240 --> 00:14:36.629
That's agre that's agreement. He's at
00:14:36.639 --> 00:14:41.750
for goodness sake. I'M REALLY
00:14:41.760 --> 00:14:43.670
THIS IS what he does is he gets very
00:14:43.680 --> 00:14:48.230
enthusiastic. Hang on. Hang on.
00:14:48.240 --> 00:14:49.910
Space nuts.
00:14:49.920 --> 00:14:50.790
>> Oh dear.
00:14:50.800 --> 00:14:52.870
>> Drives me in mud. Honestly, it drives me
00:14:52.880 --> 00:14:55.110
mud.
00:14:55.120 --> 00:14:58.310
>> I love it. I really do. Uh to our next
00:14:58.320 --> 00:15:00.550
story. Um this this could be the title
00:15:00.560 --> 00:15:03.590
of a science fiction novel, The Brain in
00:15:03.600 --> 00:15:06.949
Space. Uh we're talking about a very
00:15:06.959 --> 00:15:10.069
strange nebula that looks like a brain
00:15:10.079 --> 00:15:14.949
inside a clear sphere. Uh and and this
00:15:14.959 --> 00:15:19.030
is the consequence of a um a star that's
00:15:19.040 --> 00:15:20.790
kind of shed its outer layers and
00:15:20.800 --> 00:15:24.150
created this this quite bizarre looking
00:15:24.160 --> 00:15:27.750
nebula called PMR1.
00:15:27.760 --> 00:15:30.870
>> Indeed. That's right. Um I I very much
00:15:30.880 --> 00:15:34.230
liked uh the headline from space.com
00:15:34.240 --> 00:15:36.949
covering this story uh which is James
00:15:36.959 --> 00:15:39.110
Webb Space Telescope performs brain
00:15:39.120 --> 00:15:41.750
surgery on mysterious exposed cranial
00:15:41.760 --> 00:15:43.990
nebula which I think sums it up pretty
00:15:44.000 --> 00:15:45.430
well. That's a good one.
00:15:45.440 --> 00:15:49.670
>> Yeah, it's great. Uh so uh it's it's a
00:15:49.680 --> 00:15:52.389
basically a highly evolved star by which
00:15:52.399 --> 00:15:54.710
I mean a a star that's getting near the
00:15:54.720 --> 00:15:56.949
end of its life. it's thrown off some of
00:15:56.959 --> 00:16:01.590
the layers of its outer envelope. And
00:16:01.600 --> 00:16:04.550
what we've seen from the James Web is uh
00:16:04.560 --> 00:16:06.310
images which are taken in the near
00:16:06.320 --> 00:16:09.030
infrared and in the mid infrared. And so
00:16:09.040 --> 00:16:11.030
we get two quite different views of this
00:16:11.040 --> 00:16:13.430
thing that does look for all the world
00:16:13.440 --> 00:16:16.150
like a like an X-ray uh inside
00:16:16.160 --> 00:16:18.629
somebody's head. It's you can see the
00:16:18.639 --> 00:16:21.990
outline of the skull and a lot of funny
00:16:22.000 --> 00:16:23.990
stuff going on inside. It really does
00:16:24.000 --> 00:16:26.310
look that way, doesn't it? Like somebody
00:16:26.320 --> 00:16:28.470
put a a brain in a goldfish bowl and
00:16:28.480 --> 00:16:29.990
chucked that up in the air.
00:16:30.000 --> 00:16:31.829
>> Yes, that's right. With a few stars in
00:16:31.839 --> 00:16:33.110
the background.
00:16:33.120 --> 00:16:36.389
>> Um it's uh a little bit close to home
00:16:36.399 --> 00:16:39.030
for me actually because um this the
00:16:39.040 --> 00:16:43.590
object's technical formal name is PMR1.
00:16:43.600 --> 00:16:48.550
Um, and it was uh discovered originally
00:16:48.560 --> 00:16:50.710
uh by astronomers using the telescope,
00:16:50.720 --> 00:16:52.550
one of the telescopes I was astronomy in
00:16:52.560 --> 00:16:54.470
charge of, the 1.2 m UK Schmidt
00:16:54.480 --> 00:16:58.790
telescope uh back in the late 1990s. And
00:16:58.800 --> 00:17:01.509
three of my close colleagues were
00:17:01.519 --> 00:17:03.269
involved with this program. Quentyn
00:17:03.279 --> 00:17:05.750
Parker, David Morgan, and Ken Russell.
00:17:05.760 --> 00:17:07.990
And their names are Parker, Morgan, and
00:17:08.000 --> 00:17:10.069
Russell. And that is why this is called
00:17:10.079 --> 00:17:13.510
PMR1. was the first uh object that was
00:17:13.520 --> 00:17:16.309
discovered under a program actually
00:17:16.319 --> 00:17:18.630
really masterminded by Quentyn Parker,
00:17:18.640 --> 00:17:20.630
an old friend who's now a professor in
00:17:20.640 --> 00:17:23.750
the University of Hong Kong. um he uh
00:17:23.760 --> 00:17:28.150
had a uh a mission to photograph the sky
00:17:28.160 --> 00:17:29.750
cuz back in those days we were still
00:17:29.760 --> 00:17:31.029
using photography on the Schmidt
00:17:31.039 --> 00:17:33.510
telescope using what we call a narrow
00:17:33.520 --> 00:17:35.750
band filter that just picked out the
00:17:35.760 --> 00:17:37.830
light of excited hydrogen something
00:17:37.840 --> 00:17:41.190
called an H1 filter or an Halpha filter.
00:17:41.200 --> 00:17:44.470
Um and so the telescope used this filter
00:17:44.480 --> 00:17:47.669
to survey the night sky and many uh
00:17:47.679 --> 00:17:50.310
interesting objects were revealed of
00:17:50.320 --> 00:17:52.070
which the first one in the particular
00:17:52.080 --> 00:17:54.070
program that he collaborated with David
00:17:54.080 --> 00:17:57.669
Morgan and Ken Russell uh was concerned
00:17:57.679 --> 00:17:59.909
uh PMR1 that's the object we're talking
00:17:59.919 --> 00:18:02.630
about now we never saw it with the
00:18:02.640 --> 00:18:04.789
Schmidt telescope that was just a flame
00:18:04.799 --> 00:18:08.789
faint glowing blob but with the um with
00:18:08.799 --> 00:18:11.110
the James Web
00:18:11.120 --> 00:18:14.390
uh we see this extraordinarily detailed
00:18:14.400 --> 00:18:16.470
uh this detailed image so that the
00:18:16.480 --> 00:18:18.070
history is that it was discovered in the
00:18:18.080 --> 00:18:20.630
late 1990s on the Schmidt telescope the
00:18:20.640 --> 00:18:22.549
Spitzer space telescope which was a kind
00:18:22.559 --> 00:18:23.909
of forerunner of the James Webb
00:18:23.919 --> 00:18:25.909
telescope an infrared telescope a NASA
00:18:25.919 --> 00:18:28.870
infrared observatory um when they looked
00:18:28.880 --> 00:18:31.909
at PMR1 that was when this curious
00:18:31.919 --> 00:18:34.390
appearance led to its unofficial name of
00:18:34.400 --> 00:18:37.350
the exposed cranium nebula uh but the
00:18:37.360 --> 00:18:39.750
James Web has taken that a step further
00:18:39.760 --> 00:18:41.830
with these latest observations which are
00:18:41.840 --> 00:18:43.830
really quite remarkable and you do get a
00:18:43.840 --> 00:18:45.909
very strong impression of the
00:18:45.919 --> 00:18:49.669
three-dimensional view of this um ball
00:18:49.679 --> 00:18:52.549
of not so much a ball. It's a kind of
00:18:52.559 --> 00:18:56.549
elongated almost like a you know an oval
00:18:56.559 --> 00:19:01.750
football uh elongated sphere of gas with
00:19:01.760 --> 00:19:04.470
a whole lot of stuff going on inside it.
00:19:04.480 --> 00:19:08.870
Um and what we've got is uh an ancient
00:19:08.880 --> 00:19:12.870
star which is casting off its outer
00:19:12.880 --> 00:19:16.470
outer layers. Um there is a there is a
00:19:16.480 --> 00:19:19.830
class of stars called Vulf Rea stars
00:19:19.840 --> 00:19:24.549
named after two astronomers I think um
00:19:24.559 --> 00:19:26.710
doctors Vulf and Rey I think that's
00:19:26.720 --> 00:19:29.669
right thinking back um they are really
00:19:29.679 --> 00:19:31.510
ancient stars massive stars that are
00:19:31.520 --> 00:19:33.590
getting near the end of their lives uh
00:19:33.600 --> 00:19:35.510
and uh and are basically they have winds
00:19:35.520 --> 00:19:37.590
of radiation which are blowing away
00:19:37.600 --> 00:19:40.950
their outer envelopes um and and form
00:19:40.960 --> 00:19:43.750
this nebula and eventually uh they may
00:19:43.760 --> 00:19:45.990
turn into a supernova, an exploding
00:19:46.000 --> 00:19:50.950
star. Uh so um we understand though from
00:19:50.960 --> 00:19:52.470
the research that's been carried out
00:19:52.480 --> 00:19:55.190
with this that whether it is a Vulfraa
00:19:55.200 --> 00:19:57.990
star in the middle of PMR1 or something
00:19:58.000 --> 00:20:00.630
else, we don't know. Uh that's going to
00:20:00.640 --> 00:20:03.029
be absolutely at the very center of that
00:20:03.039 --> 00:20:06.470
brainike nebula inside the exposed
00:20:06.480 --> 00:20:07.830
cranium.
00:20:07.840 --> 00:20:10.710
>> Yeah. Um I'm gathering that seeing
00:20:10.720 --> 00:20:13.510
something like this is very unusual. Uh
00:20:13.520 --> 00:20:16.870
it doesn't look like the kind of nebula
00:20:16.880 --> 00:20:19.510
you'd normally see photographed. It's
00:20:19.520 --> 00:20:23.350
got uniformity for a start and it's uh
00:20:23.360 --> 00:20:26.710
and you can see the explosive effect uh
00:20:26.720 --> 00:20:30.789
radiating out. It just happens to look
00:20:30.799 --> 00:20:32.149
like a brain.
00:20:32.159 --> 00:20:35.990
>> Yes, that's right. Um, so it I mean it
00:20:36.000 --> 00:20:38.630
that um hydrogen alpha survey that I
00:20:38.640 --> 00:20:40.390
mentioned that Quentyn Parker and
00:20:40.400 --> 00:20:42.950
colleagues were engaged in. I'm pretty
00:20:42.960 --> 00:20:45.029
sure I took some of the photographs for
00:20:45.039 --> 00:20:47.350
it as well back in the day. Um because I
00:20:47.360 --> 00:20:48.950
was still a working astronomer then when
00:20:48.960 --> 00:20:52.470
I was astronomer in charge. Uh I think
00:20:52.480 --> 00:20:54.870
uh that one of the main things that that
00:20:54.880 --> 00:20:58.310
uh program did was reveal a very large
00:20:58.320 --> 00:21:00.789
number of so-called planetary nebula. So
00:21:00.799 --> 00:21:03.909
a planetary nebula is a cloud of gas
00:21:03.919 --> 00:21:06.789
that's got usually has circular symmetry
00:21:06.799 --> 00:21:08.710
which is why it looks like a planet and
00:21:08.720 --> 00:21:11.510
it was William who gave it gave them the
00:21:11.520 --> 00:21:13.350
name a planetary nebula. The most famous
00:21:13.360 --> 00:21:15.990
ones are are the the ring nebula in the
00:21:16.000 --> 00:21:18.149
northern hemisphere and the helix nebula
00:21:18.159 --> 00:21:20.870
down in the south. Uh but um this thing
00:21:20.880 --> 00:21:22.950
might might be might actually in the end
00:21:22.960 --> 00:21:24.710
turn out to be a planetary nebula which
00:21:24.720 --> 00:21:28.230
is an old star that's um cast off its
00:21:28.240 --> 00:21:31.350
outer layers and the central core of the
00:21:31.360 --> 00:21:32.870
star has turned into what we call a
00:21:32.880 --> 00:21:36.710
white dwarf something about the size of
00:21:36.720 --> 00:21:41.029
the earth uh but with um very high mass
00:21:41.039 --> 00:21:44.549
um mass of a star. uh and uh those are
00:21:44.559 --> 00:21:46.070
white dwarfs are very hot and they're
00:21:46.080 --> 00:21:48.149
what excite the the the g the glowing
00:21:48.159 --> 00:21:50.630
the gas into into glowing, but it's not
00:21:50.640 --> 00:21:53.110
clear whether this object is actually a
00:21:53.120 --> 00:21:55.190
white dwarf or one of these wolf stars
00:21:55.200 --> 00:21:56.630
that I was just talking about.
00:21:56.640 --> 00:21:59.110
>> Yeah. Yeah. Uh I I think we've probably
00:21:59.120 --> 00:22:01.350
got a bit of a paradolia effect here
00:22:01.360 --> 00:22:03.590
because we've just looked at it and gone
00:22:03.600 --> 00:22:04.630
that's a that's a brain.
00:22:04.640 --> 00:22:06.710
>> It's a it's a brain. Yeah, that's right.
00:22:06.720 --> 00:22:08.710
Definitely was paradolia. Yeah. When we
00:22:08.720 --> 00:22:11.830
were out on the river in Borneo, um what
00:22:11.840 --> 00:22:14.070
they told us was it's chalk full of
00:22:14.080 --> 00:22:16.310
saltwater crocodiles. Of course, every
00:22:16.320 --> 00:22:17.909
time we saw a log.
00:22:17.919 --> 00:22:18.950
>> Yes.
00:22:18.960 --> 00:22:20.149
>> The thing you thought it was.
00:22:20.159 --> 00:22:22.870
>> Oh, it's a crocodile. Yes. Yeah.
00:22:22.880 --> 00:22:26.149
>> Yeah. I I think when we saw that 40 m
00:22:26.159 --> 00:22:28.230
crocodile surging down the river, we
00:22:28.240 --> 00:22:29.750
were all panicking a bit. Turned out to
00:22:29.760 --> 00:22:30.950
be a tree,
00:22:30.960 --> 00:22:32.710
>> but um
00:22:32.720 --> 00:22:34.230
>> Well, the branches gave it away, did
00:22:34.240 --> 00:22:34.710
they?
00:22:34.720 --> 00:22:36.549
>> Yes. Well, no, it didn't have any. was
00:22:36.559 --> 00:22:38.789
that's what really made it weird.
00:22:38.799 --> 00:22:39.990
>> Like a crocodile. Yeah.
00:22:40.000 --> 00:22:42.149
>> Well, cuz we had all that monsoon rain
00:22:42.159 --> 00:22:43.510
while we were there and the river was
00:22:43.520 --> 00:22:46.390
flooded. And this is a river 560
00:22:46.400 --> 00:22:48.789
kilometers long and about where we were
00:22:48.799 --> 00:22:51.669
2 or 300 m wide. It was massive.
00:22:51.679 --> 00:22:53.750
>> And the water was flowing very fast. It
00:22:53.760 --> 00:22:55.750
was quite scary actually. But um yeah,
00:22:55.760 --> 00:22:58.149
it is it is um yeah, one of those weird
00:22:58.159 --> 00:22:59.909
effects. We we try to humanize
00:22:59.919 --> 00:23:02.310
everything we see and you'll look at
00:23:02.320 --> 00:23:03.909
something and think crocodile. No,
00:23:03.919 --> 00:23:06.549
actually, no. That's a log. Uh, and here
00:23:06.559 --> 00:23:08.549
we here we are looking at a brain in
00:23:08.559 --> 00:23:11.909
space, which is a yeah, some kind of
00:23:11.919 --> 00:23:13.909
nebula trying to figure out what kind
00:23:13.919 --> 00:23:16.070
and how it all happened. But you can
00:23:16.080 --> 00:23:19.830
read about that at the issae.org
00:23:19.840 --> 00:23:21.430
website if you want to check it out.
00:23:21.440 --> 00:23:23.990
Amazing images they are, too. This is
00:23:24.000 --> 00:23:25.669
Space Nuts with Andrew Dunley and Fred
00:23:25.679 --> 00:23:28.710
Watson.
00:23:28.720 --> 00:23:32.549
>> I'm going to step off the land now.
00:23:32.559 --> 00:23:37.909
That's one small step for man,
00:23:37.919 --> 00:23:40.870
one giant leap for mankind.
00:23:40.880 --> 00:23:43.029
>> Space nuts.
00:23:43.039 --> 00:23:45.029
>> In the past, Fred, we've had questions
00:23:45.039 --> 00:23:46.710
from the audience about the center of
00:23:46.720 --> 00:23:50.310
our galaxy. Uh, and it's not easy to
00:23:50.320 --> 00:23:52.070
answer because we can't see it. It's all
00:23:52.080 --> 00:23:54.230
shrouded in dust. Although you and I
00:23:54.240 --> 00:23:56.230
have discussed what it would be like on
00:23:56.240 --> 00:23:59.430
Earth if there was no dust and the light
00:23:59.440 --> 00:24:01.510
would be so much different for us. So,
00:24:01.520 --> 00:24:03.590
um things could have turned out a
00:24:03.600 --> 00:24:05.270
different way had that dust not been
00:24:05.280 --> 00:24:08.070
there. But, um yes, it's shrouded, but
00:24:08.080 --> 00:24:10.630
there are ways to look. And they've just
00:24:10.640 --> 00:24:14.710
published a um a finding uh thanks to a
00:24:14.720 --> 00:24:16.710
couple of the the great telescopes on
00:24:16.720 --> 00:24:19.350
Earth of what the center of our galaxy
00:24:19.360 --> 00:24:21.510
is like. They've mapped a a massive
00:24:21.520 --> 00:24:25.830
section of it in in significant detail.
00:24:25.840 --> 00:24:28.549
>> That is correct. And um I might just
00:24:28.559 --> 00:24:31.909
preface this discussion by uh noting
00:24:31.919 --> 00:24:35.669
that um in terms of personnel there is a
00:24:35.679 --> 00:24:37.430
close connection with what we've just
00:24:37.440 --> 00:24:39.590
been talking about the UK Schmidt
00:24:39.600 --> 00:24:41.669
telescope because one of my former
00:24:41.679 --> 00:24:44.230
colleagues at the UK Schmidt telescope
00:24:44.240 --> 00:24:47.269
um uh Dr. Randy Longore. Uh I worked
00:24:47.279 --> 00:24:48.470
with him at the Royal Observatory,
00:24:48.480 --> 00:24:50.870
Edinburgh. Uh he's still based in
00:24:50.880 --> 00:24:53.269
Edinburgh, but he and his wife Marie
00:24:53.279 --> 00:24:55.190
were actually visiting us here in
00:24:55.200 --> 00:24:57.269
Australia at the beginning of this year.
00:24:57.279 --> 00:24:59.190
So I went up to Newcastle to see them,
00:24:59.200 --> 00:25:02.390
and it's their son that is the lead
00:25:02.400 --> 00:25:05.110
author on the paper that has just mapped
00:25:05.120 --> 00:25:07.909
the center of the galaxy. Uh which is
00:25:07.919 --> 00:25:09.750
very nice. It's a lovely connection. So
00:25:09.760 --> 00:25:13.590
Steve Longmore their son uh like father
00:25:13.600 --> 00:25:16.310
like son he's turned into an astronomer
00:25:16.320 --> 00:25:19.269
and very capable because he has led this
00:25:19.279 --> 00:25:25.350
major survey uh which is called as is a
00:25:25.360 --> 00:25:30.070
uh an acronym for ALMA CMZ
00:25:30.080 --> 00:25:33.110
exploration survey and the CMZ if I
00:25:33.120 --> 00:25:35.350
remember rightly is the central uh
00:25:35.360 --> 00:25:38.149
something zone central molecular zone of
00:25:38.159 --> 00:25:41.830
the uh of the galaxy where molecules
00:25:41.840 --> 00:25:45.350
lurk around uh around the the black hole
00:25:45.360 --> 00:25:47.110
at the center of the galaxy. So these
00:25:47.120 --> 00:25:49.510
observations uh have been principally
00:25:49.520 --> 00:25:52.630
done by as you said uh it's been done by
00:25:52.640 --> 00:25:54.710
some of the great telescopes uh one of
00:25:54.720 --> 00:25:57.909
them is ALMA Alma itself the Atakama
00:25:57.919 --> 00:26:01.350
large millimeter submill array uh that
00:26:01.360 --> 00:26:05.430
has basically formed images of the whole
00:26:05.440 --> 00:26:08.630
of the region around the center of our
00:26:08.640 --> 00:26:11.990
galaxy and it's a very very detailed uh
00:26:12.000 --> 00:26:13.830
image. It's a mosaic basically that's
00:26:13.840 --> 00:26:15.669
been built up. The great thing about
00:26:15.679 --> 00:26:19.350
Alma is that you can tune it in uh to
00:26:19.360 --> 00:26:21.669
various chemical molecules all of which
00:26:21.679 --> 00:26:23.990
emit their radio frequencies at
00:26:24.000 --> 00:26:26.390
different wavelengths. So it's like
00:26:26.400 --> 00:26:29.990
having a radio spectrum of every point
00:26:30.000 --> 00:26:31.830
in the center of our galaxy which means
00:26:31.840 --> 00:26:34.870
that you can build up images showing how
00:26:34.880 --> 00:26:39.350
these molecules behave around the center
00:26:39.360 --> 00:26:42.870
uh of the of the galaxy. So it it really
00:26:42.880 --> 00:26:46.630
is u an extraordinary piece of work um
00:26:46.640 --> 00:26:51.590
with a lot of detail uh a great deal of
00:26:51.600 --> 00:26:54.549
um information about both the the the
00:26:54.559 --> 00:26:56.390
turbulence and the chemistry that's
00:26:56.400 --> 00:26:58.470
taking place around the center of our
00:26:58.480 --> 00:27:01.990
galaxy. There's a very extensive article
00:27:02.000 --> 00:27:04.710
about it on the brighter side of of of
00:27:04.720 --> 00:27:08.070
science uh a brighter side of news. Uh
00:27:08.080 --> 00:27:11.029
it's um got some great images and a lot
00:27:11.039 --> 00:27:13.669
of details about what has been found.
00:27:13.679 --> 00:27:15.510
I'm looking for a quote which came from
00:27:15.520 --> 00:27:19.510
one of the scientists uh which really
00:27:19.520 --> 00:27:23.750
describes very cogently uh what uh
00:27:23.760 --> 00:27:26.950
they've done. Um, in fact, Andy, sorry,
00:27:26.960 --> 00:27:29.510
Steve Longmore himself, uh, is saying
00:27:29.520 --> 00:27:32.390
the CMZ or CMZ we would call it, but
00:27:32.400 --> 00:27:34.549
Americanizing it because that's the
00:27:34.559 --> 00:27:36.710
Artakama large millimeter arrays got a
00:27:36.720 --> 00:27:39.590
strong US contingent as well as other
00:27:39.600 --> 00:27:42.070
international users. The CMZ hosts some
00:27:42.080 --> 00:27:44.070
of the most massive stars known in our
00:27:44.080 --> 00:27:46.950
galaxy. Uh many of these stars live fast
00:27:46.960 --> 00:27:49.029
and die young and they end in supernova
00:27:49.039 --> 00:27:50.710
explosions and in some cases what we
00:27:50.720 --> 00:27:53.990
call hypernovi very very intense uh
00:27:54.000 --> 00:27:57.110
supernovi. Um let me just find some
00:27:57.120 --> 00:27:58.870
other words that I was looking for
00:27:58.880 --> 00:28:03.269
because uh the the the the extraordinary
00:28:03.279 --> 00:28:06.549
thing is just how turbulent this region
00:28:06.559 --> 00:28:10.549
is. uh the fact that we've got u packed
00:28:10.559 --> 00:28:12.870
into that region around the center of
00:28:12.880 --> 00:28:15.590
our galaxy. We've got the turbulence of
00:28:15.600 --> 00:28:18.549
gas moving under the in gravitational
00:28:18.559 --> 00:28:20.070
influence of a black hole. You've got
00:28:20.080 --> 00:28:21.830
the gravity of the black hole. You've
00:28:21.840 --> 00:28:24.230
got intense magnetic fields. You've got
00:28:24.240 --> 00:28:27.029
outflows from these giant stars. And all
00:28:27.039 --> 00:28:29.590
of this is coming together to make a
00:28:29.600 --> 00:28:33.110
very complex uh region of space which
00:28:33.120 --> 00:28:35.510
basically is what has been revealed uh
00:28:35.520 --> 00:28:37.110
by this new image. is quite
00:28:37.120 --> 00:28:38.070
extraordinary.
00:28:38.080 --> 00:28:40.710
>> It is rather and I'm just reading some
00:28:40.720 --> 00:28:43.190
of the data and uh you know the
00:28:43.200 --> 00:28:46.310
description they've given lists a radius
00:28:46.320 --> 00:28:48.870
of 6.1 parex
00:28:48.880 --> 00:28:50.870
uh with an expansion velocity of 21
00:28:50.880 --> 00:28:53.750
kilometers a second. Uh
00:28:53.760 --> 00:28:55.269
like you said it's a pretty busy
00:28:55.279 --> 00:28:56.470
neighborhood.
00:28:56.480 --> 00:29:00.630
>> Yes. About 650 light years across. So
00:29:00.640 --> 00:29:03.350
really quite a large a large area. And
00:29:03.360 --> 00:29:05.590
you're right actually um that the the
00:29:05.600 --> 00:29:07.110
other telescope that was involved sorry
00:29:07.120 --> 00:29:09.590
I didn't mention that is the European
00:29:09.600 --> 00:29:11.430
Southern Observatory's Vista telescope
00:29:11.440 --> 00:29:13.510
which is one that is also at Sarah
00:29:13.520 --> 00:29:17.269
Paranel near the the VT. Uh Vista was a
00:29:17.279 --> 00:29:18.950
telescope built actually by the Brits
00:29:18.960 --> 00:29:22.549
and used by them as their buy into the
00:29:22.559 --> 00:29:25.110
European Southern Observatory.
00:29:25.120 --> 00:29:27.590
>> I it's a really great article. Uh I like
00:29:27.600 --> 00:29:30.070
the way they've got those different
00:29:30.080 --> 00:29:32.310
images of the various chemical makeups
00:29:32.320 --> 00:29:34.710
of sex and they've over overlapped them
00:29:34.720 --> 00:29:37.190
all to create one image but uh you can
00:29:37.200 --> 00:29:39.590
you can look at it from several
00:29:39.600 --> 00:29:42.870
viewpoints really and um helps you to
00:29:42.880 --> 00:29:44.230
understand what's going on in there
00:29:44.240 --> 00:29:46.230
which we've been trying to figure out
00:29:46.240 --> 00:29:47.669
for a long time. friend.
00:29:47.679 --> 00:29:49.830
>> Yeah, that's right. I mean, um, you
00:29:49.840 --> 00:29:53.029
know, again, hopping back to my time at
00:29:53.039 --> 00:29:54.950
the Royal Observatory in Edinburgh, um,
00:29:54.960 --> 00:29:57.590
my work was actually on my research was
00:29:57.600 --> 00:30:00.230
about stars in the galactic center
00:30:00.240 --> 00:30:02.549
region. And we we couldn't see the
00:30:02.559 --> 00:30:03.909
galactic centers because it's it's
00:30:03.919 --> 00:30:05.669
hidden from us by dust. And a lot of
00:30:05.679 --> 00:30:08.310
these stars were, you know, visible
00:30:08.320 --> 00:30:10.549
through thick layers of dust. That's all
00:30:10.559 --> 00:30:12.710
penetrated, of course, with infrared
00:30:12.720 --> 00:30:15.430
telescopes. That's why and and by
00:30:15.440 --> 00:30:17.909
millimeter wave telescopes too. That's
00:30:17.919 --> 00:30:20.630
why you can reveal all these fairly
00:30:20.640 --> 00:30:23.110
complex molecules that have been that
00:30:23.120 --> 00:30:26.710
that have been found. Uh so um really
00:30:26.720 --> 00:30:28.630
quite a remarkable exactly as you've
00:30:28.640 --> 00:30:31.430
said it's a great article uh gives you a
00:30:31.440 --> 00:30:33.350
good idea of just what's going on in the
00:30:33.360 --> 00:30:34.870
center of our galaxy.
00:30:34.880 --> 00:30:36.789
>> Somebody's going to ask so I'll ask on
00:30:36.799 --> 00:30:38.789
their behalf. Why couldn't James Webb
00:30:38.799 --> 00:30:40.870
have done this?
00:30:40.880 --> 00:30:44.230
Um, so it a lot of it's to do with field
00:30:44.240 --> 00:30:46.389
of view. Um, the fact that you've got a
00:30:46.399 --> 00:30:48.549
huge area here, uh, you need the
00:30:48.559 --> 00:30:50.310
coverage of what we would call a survey
00:30:50.320 --> 00:30:52.710
telescope, which the James Web isn't. It
00:30:52.720 --> 00:30:55.830
homes in on fine points of detail. Um,
00:30:55.840 --> 00:30:57.510
and the other thing is the James Web
00:30:57.520 --> 00:31:01.430
would give you a different set of um of
00:31:01.440 --> 00:31:03.909
of chemical constituents because you're
00:31:03.919 --> 00:31:07.269
looking at different wave. Uh so these
00:31:07.279 --> 00:31:11.269
are the the the um the the uh ACS
00:31:11.279 --> 00:31:13.510
project the one I just mentioned uh
00:31:13.520 --> 00:31:16.549
which uses ALMA as its main uh
00:31:16.559 --> 00:31:18.710
instrument that's looking in the
00:31:18.720 --> 00:31:21.669
millimeter sub millimeter wave region.
00:31:21.679 --> 00:31:23.830
Uh and so you see that's sensitive to
00:31:23.840 --> 00:31:25.909
different molecules from what you get in
00:31:25.919 --> 00:31:29.190
the infrared. So, uh, it is it's really,
00:31:29.200 --> 00:31:31.269
uh, it's a really neat piece of work
00:31:31.279 --> 00:31:33.029
that's been done by the right telescope
00:31:33.039 --> 00:31:34.630
by the look of it and the right group of
00:31:34.640 --> 00:31:35.190
people.
00:31:35.200 --> 00:31:37.750
>> Indeed. Yes. Fantastic. Uh, if you want
00:31:37.760 --> 00:31:40.310
to read all about it, you can do so by
00:31:40.320 --> 00:31:42.549
uh, finding the paper. Just do a search
00:31:42.559 --> 00:31:45.430
for AS's overview paper or you can read
00:31:45.440 --> 00:31:49.269
the fabulous article at the brightside.
00:31:49.279 --> 00:31:52.789
News. Uh, we're just about done. Fred,
00:31:52.799 --> 00:31:53.990
thank you very much.
00:31:54.000 --> 00:31:55.990
>> Uh, it's a pleasure. That went extremely
00:31:56.000 --> 00:31:57.029
quickly. Andrew,
00:31:57.039 --> 00:31:59.110
>> it has been lately.
00:31:59.120 --> 00:32:00.470
Maybe we're finally getting more
00:32:00.480 --> 00:32:01.590
efficient.
00:32:01.600 --> 00:32:02.950
>> No, no, no.
00:32:02.960 --> 00:32:03.590
>> Don't think so.
00:32:03.600 --> 00:32:05.430
>> All the adequate not efficient.
00:32:05.440 --> 00:32:07.350
>> Uh I think it's because Jordy didn't
00:32:07.360 --> 00:32:09.750
actually play up too much that
00:32:09.760 --> 00:32:11.590
>> that's right. It's because his sister's
00:32:11.600 --> 00:32:12.630
holding him down.
00:32:12.640 --> 00:32:16.230
>> Yeah, she is. Sisters do that. Thanks,
00:32:16.240 --> 00:32:18.149
Fred. We'll catch you very, very soon.
00:32:18.159 --> 00:32:19.750
>> Sounds great. Thanks, Andrew.
00:32:19.760 --> 00:32:21.509
>> Professor Fred Watson, astronomer at
00:32:21.519 --> 00:32:22.950
large. Uh don't forget to visit us
00:32:22.960 --> 00:32:25.350
online while you're uh listening to the
00:32:25.360 --> 00:32:27.909
podcast. Maybe uh spacenutspodcast.com
00:32:27.919 --> 00:32:29.830
or spacenuts.io
00:32:29.840 --> 00:32:32.310
and have a look around, visit the shop,
00:32:32.320 --> 00:32:35.509
maybe become a supporter. Um leave a
00:32:35.519 --> 00:32:38.470
review uh on your platform wherever you
00:32:38.480 --> 00:32:40.470
listen to us. And uh don't forget you
00:32:40.480 --> 00:32:43.509
can send us um notes and information and
00:32:43.519 --> 00:32:45.669
questions on the ask me anything tab at
00:32:45.679 --> 00:32:48.710
the top ama. And thanks to Hugh in the
00:32:48.720 --> 00:32:51.110
studio. Now Hugh couldn't be with us
00:32:51.120 --> 00:32:53.509
today. Apparently, he uh heard about
00:32:53.519 --> 00:32:55.750
this this mapping of the center of the
00:32:55.760 --> 00:32:57.830
galaxy and put the coordinates in his
00:32:57.840 --> 00:33:00.149
car GPS and he has hasn't been seen
00:33:00.159 --> 00:33:01.750
since.
00:33:01.760 --> 00:33:03.350
>> And from me, Andrew Dunley, thanks for
00:33:03.360 --> 00:33:04.630
your company. We'll see you on the next
00:33:04.640 --> 00:33:06.870
episode of Space Nuts. Bye-bye.
00:33:06.880 --> 00:33:07.830
>> Space Nuts.
00:33:07.840 --> 00:33:09.909
>> You've been listening to the Space Nuts
00:33:09.919 --> 00:33:12.230
podcast
00:33:12.240 --> 00:33:15.190
>> available at Apple Podcasts, Spotify,
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00:33:23.120 --> 00:33:27.559
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