NASA’s New Leader, a Runaway Black Hole, and Mars’ Geological Secrets

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Hello and welcome to Astronomy Daily,


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the podcast that brings the universe


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down to Earth. I'm your host, Avery.


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>> And I'm Anna. It's great to be with you


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all again. Avery, the cosmos has been


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busy and we have some great stories for


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you.


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>> You are not kidding. We're talking about


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a historic change at the top of NASA, a


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super massive black hole on the run,


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incredible news from Mars, a


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surprisingly active moon, and a major


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leap forward for European space flight.


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Where do we even begin?


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>> Let's start here on Earth with a big


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leadership announcement. It's been


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confirmed that billionaire entrepreneur


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and astronaut Jared Isaacman will be the


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next head of NASA.


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>> That is huge news. I mean, this is the


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guy behind the Inspiration 4 and Polaris


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Dawn missions. He's not just a funer.


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He's actually flown to space.


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>> Exactly. And that background is what


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makes this appointment so fascinating.


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Isaacman brings a deep understanding of


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the commercial space sector. This


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signals a potential acceleration of the


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partnership between NASA and private


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companies like SpaceX, Blue Origin, and


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others,


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>> right? A shift in focus. So, we might


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see more commercially driven missions,


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maybe faster development cycles for new


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technologies.


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>> That seems to be the expectation. His


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supporters believe his entrepreneurial


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spirit could streamline some of NASA's


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larger projects like the Aremis program.


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However, some in the scientific


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community are cautiously optimistic,


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hoping the AY's core mission of pure


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scientific research remains a top


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priority.


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>> It's a balancing act for sure. It will


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be incredibly interesting to see how his


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leadership shapes NASA's direction over


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the next few years. Okay, from


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leadership on Earth, let's head out to


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the truly wild frontiers of space. Anna,


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you have to tell us about this runaway


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black hole. This story is just


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breathtaking. Astronomers using the


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James Webb telescope have confirmed


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something they've never seen before. A


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super massive black hole weighing as


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much as 20 million suns hurtling through


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intergalactic space.


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>> Wow. How fast are we talking?


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>> It's moving at about 2.2 million miles


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hour. Fast enough to travel from the


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Earth to the moon in about 6 minutes.


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>> That is absolutely mindbending. But


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that's not even the wildest part, is it?


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>> Not at all. The most stunning part is


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what it's leaving behind. As this black


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hole plows through the gas between


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galaxies, it's compressing that material


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and triggering a massive wave of star


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formation, it's dragging a tail of


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newborn stars behind it that is 200,000


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lightyears long.


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>> 200,000 light years. That's twice the


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diameter of our own Milky Way galaxy.


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Just a tail of stars. So, it's both a


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force of destruction and creation at the


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same time.


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>> Precisely. The theory is that this


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happened because of a massive cosmic


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collision. Two galaxies merged and their


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central super massive black holes began


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to orbit each other. Then a third galaxy


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joined the fray and a complex


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gravitational dance ejected one of the


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black holes, sending it careening out of


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its home galaxy.


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>> It's like a gravitational slingshot on a


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galactic scale. An incredible discovery


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and what a testament to the power of the


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JWST. It really is. Now, let's bring our


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focus a little closer to home to our


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neighbor Mars, where another NASA


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mission is making history.


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>> Yes, let's talk about the Perseverance


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rover. This machine is just an absolute


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marathon runner. NASA recently announced


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it has traveled almost 25 miles across


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the surface of Mars.


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>> Mhm. And after several years in a harsh


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environment, it's still in excellent


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condition. This mission has been a huge


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success for autonomous navigation.


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Perseverance is making many of its own


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driving decisions to avoid hazards,


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which allows it to cover ground much


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faster than previous rovers.


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>> It's an explorer in the truest sense.


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And it's not just driving, it's doing


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some groundbreaking science. Tell us


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about the margin unit.


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>> Right. So, Perseverance has been


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exploring this area at the edge of


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Jezero crater called the margin unit.


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It's a geological treasure trove. The


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rover has been analyzing rocks rich in


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olivine, a mineral that on Earth is


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often associated with water.


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>> Okay, so olivine plus water. That's


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always an exciting combination in the


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search for life.


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>> Indeed, the data suggests these rocks


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interacted with liquid water and carbon


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dioxide from the Martian atmosphere over


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long periods. By studying these


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interactions, scientists can piece


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together what the Martian environment


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was like billions of years ago and


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assess whether it could have supported


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microbial life.


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>> And Perseverance has been drilling


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samples from these rocks, right, to


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eventually bring back to Earth.


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>> Yes, it has been collecting a diverse


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library of rock cores. The Mars sample


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return mission is still in development.


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But when those samples finally get into


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labs here on Earth, they could


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fundamentally change our understanding


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of Mars and the potential for life


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beyond our planet.


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>> An amazing mission that just keeps on


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giving. All right, let's hop from Mars


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to our own moon, which is apparently not


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the quiet, unchanging world we thought


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it was.


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>> That's right. New highresolution images


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from NASA's Lunar Reconnaissance Orbiter


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or LRO have revealed massive cracks on


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the moon's surface. These features are


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called grains and they're essentially


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trenches formed when the crust is pulled


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apart.


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>> Okay, so the crust is fracturing. What's


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causing that?


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>> These particular grabins are located


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around Mari Humorum Basin, an area that


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was once filled with volcanic lava. As


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this immense sea of lava cooled and


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solidified over millions of years, it


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contracted. This contraction put immense


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stress on the surrounding crust, causing


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it to buckle and fracture, forming these


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long linear valleys.


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>> So, this is ancient history then from


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when the moon was volcanically active.


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>> Well, this is the surprising part. While


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the process started long ago, analysis


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of the images shows that some of these


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grains are remarkably young in


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geological terms. Some might be less


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than 50 million years old.


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>> 50 million years. That's practically


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yesterday in geological time. So, the


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moon's surface is still actively


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changing. It's not a dead rock.


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>> Exactly. It suggests the lunar interior


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is still cooling and contracting. And


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these surface features are the evidence.


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It forces us to rethink the moon as a


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dynamic evolving world, which has


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important implications for future


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long-term habitats and exploration.


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>> Absolutely fascinating. Okay, for a


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final story, we're back in Earth orbit,


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celebrating a major milestone for the


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European Space Agency.


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>> Mhm. This is a big one for European


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Space Autonomy. Just this week, Europe's


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brand new Aron 6 rocket had its first


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operational launch and it was a complete


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success.


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>> I know they've been waiting for this for


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a long time. After the retirement of


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Aron 5, there was a gap in Europe's


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independent launch capability. This must


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be a huge relief.


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>> A massive relief. For the past couple of


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years, Europe has had to rely on other


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providers, including SpaceX, to launch


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its critical satellites. The successful


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launch of Aron 6 restores their ability


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to independently access space, which is


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crucial for both commercial and


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strategic reasons.


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>> So, what was on this inaugural flight?


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>> The rocket carried two new satellites


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for the Galileo constellation. This is


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Europe's global navigation satellite


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system, their equivalent of the American


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GPS. Adding these new satellites


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enhances the systems accuracy,


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reliability, and coverage. So, this


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isn't just a win for the rocket program,


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but also for the millions of people who


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will rely on the Galileo system for


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everything from navigating their cars to


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critical emergency services.


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>> That's it. It's a dual victory that


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solidifies Europe's position as a major


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player in the global space industry. A


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really significant step forward.


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>> What a fantastic roundup. From new


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leadership at NASA to cosmic fugitives


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and evolving worlds right in our


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backyard. It just goes to show that


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there is always something new to


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discover. Every day brings a revelation


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that reshapes our understanding of the


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universe.


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>> Well said, Anna. That's all the time we


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have for today on Astronomy Daily. A big


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thank you to all of you for tuning in.


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You can find us on all major podcast


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platforms and on social media, Astro


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Daily Pod.


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>> Join us again tomorrow as we continue to


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explore the final frontier. Until then,


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keep looking up.


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day.


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Stories told


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stories told


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stories