- Rocket Lab's Neutron Rocket Takes Shape: Rocket Lab has inaugurated its new Launch Complex 3 at Wallops Island, Virginia, marking a significant milestone for their next-generation Neutron rocket. Designed for medium lift capabilities, the Neutron will be able to carry payloads of up to 13,000 kilogrammes to low Earth orbit, featuring a unique reusable fairing that opens and closes during flight.
- James Webb's Surprising Planet Formation Discovery: The James Webb Space Telescope has observed a protoplanetary disc around the young star Xue 10, revealing an unexpected high concentration of carbon dioxide and a surprising lack of water vapour in the region where rocky planets are expected to form. This finding could reshape our understanding of planet formation and the chemical conditions in early star systems.
- Unraveling the Mystery of Hypervelocity White Dwarfs: A new study proposes the D6 scenario to explain how hypervelocity white dwarfs are ejected from the Milky Way. This model suggests that a cataclysmic explosion in a binary system can propel one star at incredible speeds, offering insights into type 1A supernovae and their role in cosmic measurements.
- A Piece of Space History at Auction: A dozen Sacagawea dollar coins that flew on the final mission of the space shuttle Columbia are being auctioned, with proceeds benefiting the Astronaut Memorial Foundation. These coins, recovered after the tragic loss of STS-107, serve as a poignant reminder of the mission and the enduring spirit of exploration.
- For more cosmic updates, visit our website at astronomydaily.io. Join our community on social media by searching for #AstroDailyPod on Facebook, X, YouTube Music, TikTok, and our new Instagram account! Don’t forget to subscribe to the podcast on Apple Podcasts, Spotify, iHeartRadio, or wherever you get your podcasts.
- Thank you for tuning in. This is Anna and Avery signing off. Until next time, keep looking up and stay curious about the wonders of our universe.
Rocket Lab Updates
[Rocket Lab](https://www.rocketlabusa.com/)
James Webb Discoveries
[NASA](https://www.nasa.gov/)
Hypervelocity White Dwarfs Study
[Astrophysical Journal](https://iopscience.iop.org/journal/0004-637X)
Columbia Auction Details
[Heritage Auctions](https://www.ha.com)
Astronomy Daily
[Astronomy Daily](http://www.astronomydaily.io/)
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00:00:00 --> 00:00:03 Anna: Welcome to Astronomy Daily, the podcast
00:00:03 --> 00:00:03 where.
00:00:03 --> 00:00:05 Avery: We break down the biggest news in space and
00:00:05 --> 00:00:07 astronomy. I'm Avery.
00:00:07 --> 00:00:09 Anna: And I'm Anna. We've got a great show for you
00:00:09 --> 00:00:12 today. We'll be looking at a major milestone
00:00:12 --> 00:00:14 for Rocket Lab's new reusable rocket taking
00:00:14 --> 00:00:17 shape in Virginia. And get this. The James
00:00:17 --> 00:00:20 Webb Space Telescope has found a truly
00:00:20 --> 00:00:22 bizarre planet forming disc that could
00:00:22 --> 00:00:25 rewrite our understanding of how rocky
00:00:25 --> 00:00:26 worlds are born.
00:00:26 --> 00:00:29 Avery: And plus, we'll dive into the explosive
00:00:29 --> 00:00:31 solution to the mystery of hypervelocity.
00:00:31 --> 00:00:34 White dwarfs, stellar cannonballs getting
00:00:34 --> 00:00:35 ejected from our galaxy.
00:00:36 --> 00:00:38 Anna: And finally, a poignant story about a
00:00:38 --> 00:00:41 piece of space history recovered from
00:00:41 --> 00:00:44 tragedy, now being auctioned for a very
00:00:44 --> 00:00:46 good cause. So stick around.
00:00:46 --> 00:00:49 Alright, let's kick things off on the east
00:00:49 --> 00:00:51 coast of the U.S. it sounds like Rocket Lab
00:00:51 --> 00:00:53 is making some serious moves.
00:00:54 --> 00:00:56 Avery: That's right. They just held a ceremony to
00:00:56 --> 00:00:59 inaugurate their new Launch Complex 3 at
00:00:59 --> 00:01:01 Wallops Island, Virginia. And this isn't just
00:01:01 --> 00:01:03 another pad for their trusty little elect.
00:01:05 --> 00:01:07 This is the new home for their much bigger
00:01:07 --> 00:01:10 next generation Neutron rocket. Neutron is
00:01:10 --> 00:01:12 a significant step up for them, isn't it? It
00:01:12 --> 00:01:14 moves them squarely into the medium lift
00:01:14 --> 00:01:15 launch category.
00:01:16 --> 00:01:19 Anna: Exactly. While Electron is a
00:01:19 --> 00:01:21 fantastic vehicle for small satellites,
00:01:21 --> 00:01:24 Neutron is an absolute beast in
00:01:24 --> 00:01:26 comparison. It's designed to lift Serious
00:01:26 --> 00:01:29 payloads about 13 kilogrammes
00:01:29 --> 00:01:32 to low Earth orbit. The that puts it in
00:01:32 --> 00:01:34 competition with some of the real workhorse
00:01:34 --> 00:01:35 rockets flying today.
00:01:36 --> 00:01:38 Avery: And the whole facility is built for speed
00:01:38 --> 00:01:40 too. I read that the pad is specifically
00:01:40 --> 00:01:43 designed to support a high launch cadence.
00:01:43 --> 00:01:46 Anna: It is, but the rocket itself is where the
00:01:46 --> 00:01:49 innovation really shines. It stands
00:01:49 --> 00:01:51 141ft tall, but its most
00:01:51 --> 00:01:53 unique feature has to be what they've
00:01:53 --> 00:01:56 nicknamed the Hungry Hippo Fairing.
00:01:56 --> 00:01:59 Avery: That's a fantastic name. Let me guess.
00:01:59 --> 00:02:01 Instead of the payload fairing just
00:02:01 --> 00:02:04 jettisoning and falling into the ocean, it's
00:02:04 --> 00:02:06 actually part of the first stage and is
00:02:06 --> 00:02:06 reusable.
00:02:07 --> 00:02:10 Anna: You nailed it. The fairing opens up like a
00:02:10 --> 00:02:12 giant mouth to release the second stage and
00:02:12 --> 00:02:15 the payload. And then it closes right back up
00:02:15 --> 00:02:17 before the entire first stage returns to
00:02:17 --> 00:02:20 Earth for a landing. It's a really clever
00:02:20 --> 00:02:23 approach to making the whole system rapidly
00:02:23 --> 00:02:23 reusable.
00:02:24 --> 00:02:27 Avery: That really streamlines the whole process. So
00:02:27 --> 00:02:28 when can we expect to see Neutron take
00:02:28 --> 00:02:29 flight?
00:02:29 --> 00:02:31 Anna: They're targeting the maiden flight for the
00:02:31 --> 00:02:34 end of 2025. It's certainly an
00:02:34 --> 00:02:37 ambitious timeline, but Rocket Lab has a
00:02:37 --> 00:02:39 habit of meeting its goals. And this isn't
00:02:39 --> 00:02:42 just good news for space enthusiasts. The
00:02:42 --> 00:02:45 project is also Expected to create over
00:02:45 --> 00:02:47 250 jobs in the region.
00:02:47 --> 00:02:49 Avery: It's a fantastic development for the
00:02:49 --> 00:02:52 commercial space industry. It's very exciting
00:02:52 --> 00:02:54 to see another major player making such big
00:02:54 --> 00:02:56 strides in the reusable rocket game.
00:02:57 --> 00:03:00 Anna: Well, from new rockets getting ready to fly,
00:03:00 --> 00:03:02 let's turn to new discoveries from orbit.
00:03:03 --> 00:03:05 The James Webb Space Telescope has once
00:03:05 --> 00:03:08 again delivered some truly mind
00:03:08 --> 00:03:10 bending science. This next story
00:03:11 --> 00:03:13 challenges some of the core ideas we have
00:03:13 --> 00:03:16 about how planets like our own are formed.
00:03:16 --> 00:03:19 Avery: It really does. JWST was pointed
00:03:19 --> 00:03:22 at a protoplanetary disc. That's the
00:03:22 --> 00:03:25 vast swirling cloud of gas and dust around a
00:03:25 --> 00:03:27 young star where planets are born. This
00:03:27 --> 00:03:30 particular one surrounds an infant star named
00:03:30 --> 00:03:33 Xue 10, which is located about
00:03:33 --> 00:03:35 5 light years away.
00:03:35 --> 00:03:38 Anna: And what did it find that was so out of the
00:03:38 --> 00:03:39 ordinary?
00:03:39 --> 00:03:42 Avery: It found that the inner part of the disc, the
00:03:42 --> 00:03:44 exact region where we'd expect to see rocky
00:03:44 --> 00:03:47 Earth like planets forming, has a very high
00:03:47 --> 00:03:50 concentration of carbon dioxide. But
00:03:50 --> 00:03:52 what's really striking is what seems to be
00:03:52 --> 00:03:55 missing. Water. The telescope found
00:03:55 --> 00:03:57 a surprisingly low amount of water vapour in
00:03:57 --> 00:03:58 this critical zone.
00:03:59 --> 00:04:01 Anna: That seems completely backward, doesn't it?
00:04:02 --> 00:04:04 Our, uh, current models of planet formation
00:04:04 --> 00:04:07 suggest that this inner region should be rich
00:04:07 --> 00:04:09 in water, which we consider a key ingredient
00:04:09 --> 00:04:12 for the development of life. It throws a bit
00:04:12 --> 00:04:15 of a wrench in the works. Scientists are now
00:04:15 --> 00:04:17 scrambling to figure out why this particular
00:04:17 --> 00:04:19 disc is so water poor and
00:04:20 --> 00:04:22 carbon rich. One of the leading
00:04:22 --> 00:04:25 hypotheses is that the entire star system
00:04:25 --> 00:04:27 is being blasted by intense
00:04:27 --> 00:04:30 ultraviolet radiation from massive
00:04:30 --> 00:04:32 hot stars nearby.
00:04:32 --> 00:04:34 Avery: So that intense radiation could
00:04:35 --> 00:04:37 literally be changing the disk's chemistry,
00:04:37 --> 00:04:40 perhaps breaking down the water molecules or
00:04:40 --> 00:04:43 preventing them from settling in that inner
00:04:43 --> 00:04:44 planet forming region.
00:04:45 --> 00:04:47 Anna: It could be altering it completely.
00:04:48 --> 00:04:51 And this discovery isn't just about a strange
00:04:51 --> 00:04:53 distant star system. It might also
00:04:53 --> 00:04:56 help explain some unusual isotope
00:04:56 --> 00:04:59 signatures that have been found in meteorites
00:04:59 --> 00:05:01 right here in our own solar system.
00:05:02 --> 00:05:05 It suggests that the chemical makeup of our
00:05:05 --> 00:05:07 cosmic neighbourhood during its formation
00:05:07 --> 00:05:09 might have been very different than we
00:05:09 --> 00:05:10 previously thought.
00:05:11 --> 00:05:14 Avery: Incredible. So the recipe for making an
00:05:14 --> 00:05:17 Earth might be much more varied than we
00:05:17 --> 00:05:20 assumed. It's just amazing how a
00:05:20 --> 00:05:22 single observation from Webb can open up so
00:05:22 --> 00:05:24 many profound new questions.
00:05:25 --> 00:05:27 Anna: From making planets to, well,
00:05:28 --> 00:05:30 breaking stars. For years,
00:05:30 --> 00:05:33 astronomers have tracked these truly
00:05:33 --> 00:05:35 bizarre objects called
00:05:35 --> 00:05:37 hypervelocity white dwarfs.
00:05:38 --> 00:05:40 Now a white dwarf is the super dense
00:05:40 --> 00:05:43 remnant of a, uh, sun like star. But these
00:05:43 --> 00:05:46 ones are moving so fast that they're on
00:05:46 --> 00:05:49 a trajectory to completely escape the
00:05:49 --> 00:05:51 Milky Way G galaxy, right?
00:05:51 --> 00:05:54 Avery: They're like stellar cannonballs. The
00:05:54 --> 00:05:57 fundamental Question has always been what
00:05:57 --> 00:06:00 kind of cosmic event could possibly launch
00:06:00 --> 00:06:02 an entire star with that much force?
00:06:02 --> 00:06:05 Anna: Well, a new study using some powerful
00:06:05 --> 00:06:08 computer simulations believes it has the
00:06:08 --> 00:06:11 answer. And it is incredibly
00:06:11 --> 00:06:14 violent. The leading model is being called
00:06:14 --> 00:06:16 the D6 scenario. And it all
00:06:16 --> 00:06:19 starts with a binary system of two white
00:06:19 --> 00:06:22 dwarfs orbiting each other in a tight
00:06:22 --> 00:06:22 embrace.
00:06:23 --> 00:06:26 Avery: A, uh, stellar dance of death, I imagine.
00:06:26 --> 00:06:27 What happens next?
00:06:28 --> 00:06:31 Anna: The lighter of the two stars gets
00:06:31 --> 00:06:34 gravitationally shredded by its heavier
00:06:34 --> 00:06:36 companion. Material from that
00:06:36 --> 00:06:39 disrupted star then forms a layer of
00:06:39 --> 00:06:41 helium on the surface of the more massive
00:06:41 --> 00:06:44 one. This accretion is what triggers
00:06:44 --> 00:06:47 a cataclysmic two stage explosion.
00:06:48 --> 00:06:50 Avery: Two stages? How does that work?
00:06:51 --> 00:06:53 Anna: First, that outer shell of helium
00:06:54 --> 00:06:56 ignites in a massive detonation.
00:06:57 --> 00:06:59 This explosion sends a powerful
00:06:59 --> 00:07:02 shockwave inwards, compressing the
00:07:02 --> 00:07:05 carbon oxygen core of the primary star.
00:07:06 --> 00:07:08 And that shockwave is so
00:07:08 --> 00:07:11 unbelievably intense that it triggers
00:07:11 --> 00:07:13 a second even more powerful
00:07:13 --> 00:07:16 explosion. A full blown type
00:07:16 --> 00:07:18 1a supernova.
00:07:18 --> 00:07:21 Avery: And that supernova completely obliterates the
00:07:21 --> 00:07:22 primary star.
00:07:22 --> 00:07:25 Anna: It's utterly destroyed. But the companion
00:07:25 --> 00:07:28 star, the one that was initially torn apart,
00:07:28 --> 00:07:31 actually survives the blast. The
00:07:31 --> 00:07:34 sheer asymmetric force of its partner's
00:07:34 --> 00:07:36 demise is what acts like a cannon,
00:07:37 --> 00:07:39 flinging it outwards at these incredible
00:07:39 --> 00:07:41 galaxy escaping speeds.
00:07:42 --> 00:07:45 Avery: Wow. So one star is annihilated
00:07:45 --> 00:07:47 just to launch its partner across the cosmos.
00:07:48 --> 00:07:50 The simulations must have been phenomenally
00:07:50 --> 00:07:52 detailed to pinpoint that mechanism.
00:07:53 --> 00:07:55 Anna: They were. The D6 model
00:07:55 --> 00:07:58 successfully recreated the incredible speeds
00:07:58 --> 00:08:01 and physical properties we observe in these
00:08:01 --> 00:08:03 hypervelocity white dwarfs. It's a major
00:08:03 --> 00:08:06 breakthrough that not only solves the stellar
00:08:06 --> 00:08:09 cannonball mystery, but but also gives us a
00:08:09 --> 00:08:11 clearer picture of one of the ways type
00:08:11 --> 00:08:14 1A supernovae can happen. And those
00:08:14 --> 00:08:17 explosions are crucial cosmic yardsticks for
00:08:17 --> 00:08:19 measuring the expansion of the universe.
00:08:20 --> 00:08:22 Avery: For our final story today, we come back to
00:08:22 --> 00:08:25 Earth to remember a tragic but incredibly
00:08:25 --> 00:08:28 important moment in spaceflight history. A
00:08:28 --> 00:08:30 very unique set of artefacts is going up for
00:08:30 --> 00:08:33 auction. A dozen Sacagawea dollar
00:08:33 --> 00:08:35 coins that flew on the final mission of the
00:08:35 --> 00:08:38 space shuttle Columbia STS107.
00:08:38 --> 00:08:40 Anna: This is such a powerful and moving
00:08:41 --> 00:08:44 story. These coins were originally part
00:08:44 --> 00:08:46 of the US Mint's Coins in Space programme.
00:08:47 --> 00:08:49 They were meant to be put on display at
00:08:49 --> 00:08:51 places like the Smithsonian after the
00:08:51 --> 00:08:54 mission. But of course, the Columbia tragedy
00:08:54 --> 00:08:57 occurred during re entry in February of
00:08:57 --> 00:08:57 2003.
00:08:58 --> 00:09:00 Avery: The shuttle was lost along with its seven
00:09:00 --> 00:09:03 member crew. It's honestly hard to believe
00:09:03 --> 00:09:05 that anything, especially something as small
00:09:05 --> 00:09:07 as a coin, could have survived that event.
00:09:07 --> 00:09:10 Anna: It is. But during the massive debris
00:09:10 --> 00:09:13 recovery effort across East Texas.
00:09:13 --> 00:09:16 These coins were found. They were charred and
00:09:16 --> 00:09:19 damaged from the intense heat of re entry,
00:09:19 --> 00:09:21 but they were recovered.
00:09:21 --> 00:09:23 Avery: That's amazing. But how could they be
00:09:23 --> 00:09:25 absolutely certain that these were the
00:09:25 --> 00:09:28 authentic coins that actually flew on the
00:09:28 --> 00:09:28 mission?
00:09:28 --> 00:09:31 Anna: This is the incredible part of the story. The
00:09:31 --> 00:09:34 US Mint had kept control coins from
00:09:34 --> 00:09:36 the exact same batch that never left the
00:09:36 --> 00:09:39 ground. Forensic, forensic investigators were
00:09:39 --> 00:09:41 able to compare the unique metallurgical
00:09:41 --> 00:09:44 properties of the recovered damaged
00:09:44 --> 00:09:47 coins to the pristine control set.
00:09:47 --> 00:09:50 And they confirmed they were the genuine
00:09:50 --> 00:09:50 articles.
00:09:50 --> 00:09:52 Avery: And um, now after all these years, they're
00:09:52 --> 00:09:54 being auctioned by Heritage Auctions.
00:09:54 --> 00:09:57 Anna: Yes, and for a wonderful cause. The
00:09:57 --> 00:09:59 proceeds from the auction are going to
00:09:59 --> 00:10:01 benefit the Astronaut Memorial foundation
00:10:02 --> 00:10:05 and other space related charities, all
00:10:05 --> 00:10:07 dedicated to honouring the memory of fallen
00:10:07 --> 00:10:07 astronauts.
00:10:08 --> 00:10:10 Avery: It's a, uh, truly powerful way to remember
00:10:10 --> 00:10:13 the crew of STS107. These
00:10:13 --> 00:10:15 coins aren't just currency, they're uh, a
00:10:15 --> 00:10:18 testament to survival, to the memory of the
00:10:18 --> 00:10:20 crew, and to the enduring spirit of
00:10:20 --> 00:10:23 exploration. A truly poignant piece
00:10:23 --> 00:10:24 of space history.
00:10:24 --> 00:10:26 Anna: And that's all the time we have for today on
00:10:26 --> 00:10:29 Astronomy Daily. From new rockets preparing
00:10:29 --> 00:10:32 for flight to deep mysteries of planet
00:10:32 --> 00:10:35 formation and violent stellar explosion.
00:10:35 --> 00:10:38 Avery: And a humbling reminder of the human side of
00:10:38 --> 00:10:40 our journey into space. It's been another
00:10:41 --> 00:10:43 fascinating day in the cosmos.
00:10:43 --> 00:10:45 Anna: Thanks so much for tuning in. We'll be back
00:10:45 --> 00:10:48 next time with another roundup of the latest
00:10:48 --> 00:10:49 space and astronomy news.
00:10:50 --> 00:10:52 Avery: Until then, keep looking up.