Feb. 5, 2025

Ancient Impacts, Blue Origin Breakthroughs, and Galactic Ripples: S04E31

Ancient Impacts, Blue Origin Breakthroughs, and Galactic Ripples: S04E31

Astronomy Daily - The Podcast: S04E31
In this episode of Astronomy Daily, host Anna takes us on an exhilarating journey through recent space discoveries and developments that are reshaping our understanding of the cosmos. From the dramatic origin of...

Season 4
Astronomy Daily - The Podcast: S04E31
In this episode of Astronomy Daily, host Anna takes us on an exhilarating journey through recent space discoveries and developments that are reshaping our understanding of the cosmos. From the dramatic origin of lunar canyons to the captivating Bullseye Galaxy, this episode is filled with groundbreaking insights and exciting updates from the world of space exploration.
Highlights:
- Lunar Canyons Unveiled: Discover the fascinating story behind Vallis Schrodinger and Vallis Planck, two massive canyons on the Moon, formed by a colossal impact event 3.8 billion years ago. Learn how this discovery could influence future lunar exploration and the opportunity to study ancient rocks near NASA's Artemis landing site.
- Blue Origin's Lunar Gravity Simulation: Join us as we celebrate Blue Origin's successful New Shepard launch, marking a significant milestone in simulating lunar gravity conditions. This mission opens new avenues for testing technologies crucial for future lunar exploration.
- The Bullseye Galaxy: Explore the stunning discovery of the Bullseye Galaxy, showcasing nine distinct ring-shaped ripples created by a galactic collision. This observation not only confirms theoretical predictions but also provides insight into the future of our own Milky Way as it merges with Andromeda.
- Lunar Trailblazer Mission: Get the latest on SpaceX's upcoming Lunar Trailblazer mission, aimed at mapping water distribution on the Moon. This innovative mission promises to enhance our understanding of lunar resources and their potential for future human settlement.
- NASA’s Europa Clipper Progress: Hear about the early milestones of NASA's Europa Clipper mission, which is on its way to study Jupiter's icy moon. The spacecraft's first images and upcoming Mars flyby are paving the way for its ambitious scientific objectives.
- Alien Civilizations and Earth's Signature: Delve into a compelling study examining how far away alien civilizations could detect signs of Earth's existence. This research offers intriguing insights into our technological footprint and its implications for the search for extraterrestrial intelligence.
For more cosmic updates, visit our website at astronomydaily.io. Join our community on social media by searching for #AstroDailyPod on Facebook, X, YouTubeMusic, Tumblr, and TikTok. 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 signing off. Until next time, keep looking up and stay curious about the wonders of our universe.
00:00 - Welcome back to Astronomy Daily
01:02 - Origins of lunar canyons near the south pole
05:30 - Blue Origin's lunar gravity simulation milestone
10:15 - Discovery of the Bullseye Galaxy and its ring structures
14:00 - Upcoming Lunar Trailblazer mission details
18:20 - Progress of NASA’s Europa Clipper mission
22:00 - Study on alien civilizations detecting Earth
25:00 - Conclusion and upcoming content
✍️ Episode References
Lunar Canyons Study
[Lunar Canyons](https://www.nature.com/articles)
Blue Origin New Shepard
[Blue Origin](https://www.blueorigin.com)
Bullseye Galaxy
[Bullseye Galaxy](https://hubblesite.org)
Lunar Trailblazer Mission
[Lunar Trailblazer](https://www.nasa.gov/lunartrailblazer)
NASA Europa Clipper
[NASA Europa Clipper](https://www.nasa.gov/europa-clipper)
SETI Institute Study
[SETI Institute](https://www.seti.org)
Astronomy Daily
[Astronomy Daily](http://www.astronomydaily.io)

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Welcome to Astronomy Daily.

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I'm Anna, and we have a great lineup of space

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discoveries and developments to share with you today. From ancient

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lunar canyons formed by catastrophic impacts, to spectacular galactic collisions

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creating cosmic ripples, and groundbreaking missions exploring our Solar System,

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we'll journey through some of the most fascinating recent developments

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in space exploration and astronomy. Our stories today will take

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us from the Moon's mysterious south pole to the far

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reaches of space, where the spectacular Bull's Eye Galaxy shows

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us the aftermath of an incredible cosmic collision.

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We'll also check in on several exciting space.

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Missions, including Blue Origin's latest achievement and NASA's ongoing explorations

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of our cosmic neighborhood.

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A lot to cover, so let's kick things off with

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our own moon.

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A fascinating new study has revealed the dramatic origin story

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of two enormous canyons near the Moon's south pole. These

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massive structures, known as Vallis Schrodinger and Vallas Plank, were

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carved out in less than ten minutes by an extraordinary

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cosmic event that occurred three zero point eight billion years ago,

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according to research published in Nature Communications, it all began

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with a massive impact near the lunar south pole. This

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collision sent a curtain of rock flying away from the

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impact site, and when these rocks came crashing back down,

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they struck the lunar surface with devastating force. The energy

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released was truly astronomical, about one hundred and thirty times

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greater than Earth's entire nuclear weapons inventory. These falling rocks

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created what planetary geologist David Kring describes as a staccato

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like series of impacts bang bang, bang, that carved out

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two incredible canyons. To put their size in perspective, While

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the Grand Canyon reaches depths of one point nine kilometers,

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these lunar canyons plunge as deep as three point five

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kilometers into the Moon's surface. They stretch for about two

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hundred and seventy and two hundred and eighty kilometers in length,

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cutting straight lines across the lunar landscape. What makes this

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discovery particularly significant for future lunar exploration is its location.

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The impact site lies about one hundred and twenty five

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kilometers from where NASA's Artemis astronauts plan to land. Initially,

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scientists worried that the impact might have buried some of

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the Moon's oldest rocks, potentially dating back to its formation

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four billion years ago, under debris. However, the team's analysis

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revealed some good news. The impact appears to have thrown

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material primarily northward, away from the planned exploration zone. This

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means that when astronauts arrive, they should still have access

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to these ancient rocks, offering an unprecedented opportunity to study

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the earliest chapter of the Earth Moon System's history. If

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we could stand on the lunar surface today, we'd be

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looking at what Kring calls one of the most dramatic

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landscapes in our cosmic neighborhood, a testament to the Moon's

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violent past, and a window into the powerful forces that

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shaped our Solar system. And some good news today. Blue

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Origin has just achieved a significant milestone in space research

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with their latest New Shepherd launch from their West Texas facility.

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The mission, designated n S twenty nine, wasn't just another

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routine flight. It marked the company's first successful attempt at

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simulating lunar gravity conditions in space. The launch saw New

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Shepherd reach an impressive altitude of one hundred and five

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kilometers above sea level. What made this flight unique was

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what happened after the capsule separated from its booster. Using

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reaction control thrusters, the capsule was commanded to spin at

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eleven revolutions per minute, creating lunar gravity conditions inside for

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approximately two minutes. This capability represents a major breakthrough for

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lunar research. As phil Joyce, Blue Origin, Senior vice president

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for New Shepherd, explained, it provides researchers with an invaluable

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opportunity to test lunar technologies at a fraction of the

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cost of actual Moon missions. Scientists can now rapidly iterate

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and test their experiments in lunar like conditions, dramatically accelerating

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the development process. The mission carried twenty nine different payloads,

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with seventeen of them provided by NASA through their Flight

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Opportunities program. These experiments covered crucial areas for future lunar exploration,

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including resource utilization, dust mitigation, advanced habitation systems, and various

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spacecraft technologies. One payload was even mounted on the exterior

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of the booster to test its response to space conditions.

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While there was a minor issue with one of the

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three parachutes during descent, The capsule landed safely, as it's

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designed to operate with just two parachutes. The successful completion

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of this mission opens up exciting new possibilities for lunar

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research and development, providing a crucial stepping stone towards sustainable

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lunar exploration and establishing a permanent human presence on the Moon.

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The achievement marks a significant advancement in our ability to

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prepare for future lunar missions, offering researchers a reliable platform

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to test and refine their technologies before deploying them on

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the Moon itself. Next up today, talk about a cosmic bullseye.

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The Hubble Space telescope has captured something truly remarkable, a

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galaxy sporting not one, not two, but nine distinct ring

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shaped ripples in its structure. This extraordinary cosmic object, formerly

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known as LEDA one three one three, four two four,

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but nicknamed the Bullseye galaxy, lies about five hundred sixty

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seven million light years away in the constellation Pisces. This

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discovery was completely serendipitous. Yale University researcher Imad Pasha spotted

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these unusual rings while reviewing a ground based imaging survey,

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and the finding immediately demanded closer investigation. When the team

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took a closer look using Hubble's Advanced Camera for surveys,

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they were able to spot eight distinct rings, with a

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ninth ring identified using data from the Kech Observatory in Hawaii.

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What caused this remarkable pattern, Well, imagine throwing a rock

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into a pond. That's essentially what happened here. On a

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galactic scale, a smaller blue dwarf galaxy plunged right through

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the heart of the larger galaxy about fifty million years ago,

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creating these spectacular ripples in space. Even now, though the

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galaxies are separated by one hundred thirty thousand light years,

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they remain connected by a thin trail of gas. The

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Bullseye galaxy itself is quite a sizable target, spanning about

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two hundred fifty thousand light years. That's two and a

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half times wider than our Milky Way. The impact event

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caused galactic material to move both inward and outward, triggering

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multiple waves of star formation along these ripples, creating exactly

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the pattern that theoretical models had predicted.

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What makes this discovery.

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Particularly exciting is that it's the first time we've seen

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so many rings in a single galaxy. Previous observations of

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similar galactic collisions only showed two or three rings at most.

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The timing of this observation is particularly fortunate, as there's

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only a brief window after such an impact when a

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galaxy would display so many distinct rings. This remarkable observation

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not only confirms long standing theoretical predictions about galactic collisions,

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but also gives us a preview of what might happen

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when galaxies merge, something our own Milky Way will experience

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billions of years from now when it collides with the

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Andromeda galaxy, though that encounter is expected to be far

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more complex than this relatively straightforward cosmic bulls eye shot.

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In more Moon news, an exciting new mission is preparing

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to head to the Moon as SpaceX readies the launch

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of the Lunar Trailblazer orbiter scheduled for February twenty sixth

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from NASA's Kennedy Space Center. This university led mission has

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a fascinating objective to pinpoint the locations of ice and

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liquid water trapped within lunar rocks. The spacecraft, weighing about

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four hundred and forty pounds, has been built by Lockheed

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Martin using their innovative Curio platform, a new small sat

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Archett texture designed to make deep space exploration more cost efficient.

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The probe comes.

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Equipped with two deployable solar arrays and carries two primary

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scientific instruments, the High Resolution Volatiles and Minerals Moon Mapper

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from JPL and the Lunar Thermal Mapper from the University

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of Oxford. What makes this mission particularly interesting is its

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planned observation strategy. The Lunar Trailblazer will peer into permanently

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shadowed regions of the Moon, searching for microcold traps smaller

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than a football field. It will also collect measurements at

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various times of day over sunlit regions to understand how

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water signatures might change as surface temperatures fluctuate by hundreds

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of degrees during a lunar day. Following its launch aboard

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the Falcon nine, where it will share the ride with

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intuitive machines athena lunar lander, the spacecraft will take between

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four to seven months to reach lunar orbit. Once there,

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its plan to operate for at least a year systematically

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mapping and studying the Moon's water distribution. This mission represents

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an important step in understanding how water works on the Moon,

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knowledge that could prove crucial for future lunar exploration and

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potential human settlement. After completing its scientific mission, the spacecraft

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will conclude its journey with a planned impact on the

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lunar surface, a process officially termed as surface disposal. The

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Lunar Trailblazer is part of NASA's Small Innovative Missions for

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Planetary Exploration program, and in a unique educational component, it

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will be operated by students from both Caltech and Pasadena

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City College at the Caltech based Infrared Processing and Analysis Center.

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NASA's Europa Clipper mission has hid an early milestone on

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its ambitious journey to Jupiter's icy Moon, Europa marking progress

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just three months after its launch from Kennedy Space Center.

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While the spacecraft still has an incredible one point six

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billion miles ahead of it before reaching Jupiter's orbit in

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twenty thirty, it's already providing valuable data from its current

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position fifty three million miles from Earth. The mission team

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recently received the spacecraft's first images of deep space, captured

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by its star treker cameras. These specialized imagers act like

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a celestial compass, helping mission controllers precisely determine the spacecraft's orientation,

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crucial for keeping its communication antennas pointed toward Earth. The

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captured starfield shows tiny pinpricks of light from stars between

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one hundred and fifty to three hundred light years away,

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including bright stars from the constellation Corvus. The spacecraft is

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currently racing through space at an astonishing seventeen miles per

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second relative to the Sun and is approaching its first

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major navigational milestone, a Mars flyby scheduled for March first.

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This carefully planned maneuver will use the red planet's gravity

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to give the spacecraft an additional boost on its long

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journey to the Jupiter System. Once it reaches its destination, Europa,

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Clipper will conduct forty nine close flybys of Europa using

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its of nine scientific instruments to study the Moon's composition, geology,

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and the mysterious ocean that lies beneath its icy crust.

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This comprehensive investigation will help scientists determine whether Europa's subsurface

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ocean might harbor conditions suitable for life. The successful checkout

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of the Star Trekers represents an important early step in

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ensuring all systems are functioning as intended after launch, While

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the spacecraft's main science cameras remain safely behind their protective

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covers for at least the next three years. These engineering

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milestones are building confidence in the mission's ability to accomplish

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its ambitious scientific goals when it finally arrives at Jupiter's

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intriguing icy moon. Have you ever thought about this? A

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fascinating new study is asking a compelling question, if there

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are alien civilizations out there with technology similar to ours,

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how far away could they detect signs of Earth's existence.

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This research, led by Sophia's Shake from the Seti Institute,

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takes a unique approach by examining our own technological footprint

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from an outsider's perspective. Instead of speculating about advanced alien civilizations,

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the team focused on what an alien civilization with Earth

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twenty twenty four level technology could detect. They analyzed various

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technosignatures were currently producing, from radio transmissions to satellite signals,

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and even city lights and atmospheric pollution. The results paint

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an interesting picture of our cosmic visibility. Our most detectable

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signature comes from our planetary radar systems like the former

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Araxibo observatory, which could be spotted from up to twelve

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thousand light years away. That's roughly the distance to the

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Tadpole nebula, quite a considerable reach into our galaxy. The

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next most visible signs would be signals from NASA's Deep

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Space Network, detectable from about one hundred light years away,

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But most of our technological signatures, including our LTE signals,

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atmospheric pollution, and laser emissions, would only be detectable from

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within about four light years, approximately the distance to our

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nearest stellar neighbor Proximus Andry. What's particularly intriguing is how

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these findings might inform our own search for extraterrestrial intelligence.

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The research suggests that, despite ongoing debates in the SETI community,

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focusing on radio waves remains our best bet for detecting

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other civilizations, as they outperform other technos signatures by a

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factor of a thousand in terms of detection distance. The

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study also raises thought provoking questions about how we're presenting

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ourselves to the cosmos. Our technological signatures could tell potential

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observers quite a bit about our society, from how we

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organize ourselves to our relationship with our environment. It's a

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cosmic mirror that reflects not just our technological capabilities, but

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also who we are as a civilization. That brings us

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to the end of another fascinating episode of Astronomy Daily,

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I'm anna and I hope you've enjoyed exploring these incredible

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stories from across the cosmos me today. From ancient lunar

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canyons to rippling galaxy collisions, and from water hunting spacecraft

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to our own cosmic detectability. It's been quite a journey

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through space and science. If you want to stay up

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to date with all the latest developments in space and astronomy,

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head over to Astronomy Daily dot io. There you can

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sign up for our free daily newsletter and access our

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constantly updating newsfeed. You'll also find all our past episodes

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available for listening anytime. Don't forget to join our growing

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community on social media. You can find us by searching

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for astro Daily Pod on Facebook, x, YouTube, and TikTok.

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We're sharing amazing space images and breaking news content every day.

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Until next time, Keep looking up and wondering about the

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mysteries of our universe. This has been anna with Astronomy, Dailyday.

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Star Star. The story is control h