Feb. 15, 2025

Webb's Cosmic Discoveries, Space Station Updates, and New Theories on Life's Emergence: S04E40

Webb's Cosmic Discoveries, Space Station Updates, and New Theories on Life's Emergence: S04E40

Astronomy Daily - The Podcast: S04E40
In this episode of Astronomy Daily, host Anna takes you on an exhilarating journey through groundbreaking discoveries and theories reshaping our understanding of the universe. From the latest findings of the James...

Astronomy Daily - The Podcast: S04E40
In this episode of Astronomy Daily, host Anna takes you on an exhilarating journey through groundbreaking discoveries and theories reshaping our understanding of the universe. From the latest findings of the James Webb Space Telescope to fascinating updates from the International Space Station, this episode is packed with insights that will spark your cosmic curiosity.
Highlights:
- James Webb Space Telescope's Revelations: Explore how the James Webb Space Telescope has provided unprecedented insights into Trans Neptunian objects, revealing their diverse compositions and the secrets they hold about the early solar system's formation.
- Update from the International Space Station: Hear from NASA astronauts Suni Williams and Butch Wilmore as they clarify their extended stay aboard the ISS, debunking media myths and sharing their experiences in microgravity.
- New Perspectives on Intelligent Life: Delve into a revolutionary theory from Penn State that challenges the notion of humanity's emergence as a rare cosmic accident, suggesting that intelligent life could be an inevitable outcome of planetary evolution.
- Asteroid Bennu's Surprising Samples: Discover groundbreaking findings from NASA's Osiris Rex mission, including the presence of salt minerals that hint at ancient water activity and the potential for life's building blocks in the early solar system.
- Earth's Dynamic Inner Core: Learn about recent research revealing unexpected structural changes in Earth's inner core, which could influence our understanding of the planet's magnetic field and its overall dynamics.
- Innovative Exploration Technology: Get introduced to Splitter, a new robotic system designed for low gravity environments, showcasing how advanced technology could revolutionize exploration on asteroids and beyond.
For more cosmic updates, visit our website at astronomydaily.io. Join our community on social media by searching for #AstroDailyPod on Facebook, X, YouTubeMusic, 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 - James Webb's discoveries of Trans Neptunian objects
06:30 - ISS update from astronauts Suni and Butch
12:00 - New theory on the emergence of intelligent life
16:30 - Findings from the Osiris Rex mission and asteroid Bennu
22:00 - Insights into Earth's inner core dynamics
26:00 - Introduction to the Splitter exploration robot
30:00 - Conclusion and upcoming content
✍️ Episode References
James Webb Space Telescope Insights
[James Webb](https://www.nasa.gov/webb)
International Space Station Updates
[NASA ISS](https://www.nasa.gov/iss)
Intelligent Life Research
[Penn State](https://www.psu.edu)
Osiris Rex Mission Findings
[Osiris Rex](https://www.nasa.gov/osiris-rex)
Earth's Inner Core Research
[Earth's Core](https://www.sciencedaily.com/earth-core)
Splitter Exploration Robot
[UCLA Robotics](https://www.ucla.edu/robotics)
Astronomy Daily
[Astronomy Daily](http://www.astronomydaily.io)

Become a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-space-news-discoveries--5648921/support.
WEBVTT

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Hello, and welcome to Astronomy Daily. I'm your host, Anna,

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and we have a big lineup of space discoveries and

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breakthroughs to share with you. Today, we'll journey beyond Neptune,

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where the James Web Space Telescope has made remarkable findings

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about mysterious objects in our Solar System's outer reaches. We'll

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hear from astronauts aboard the International Space Station who want

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to set the record straight about their extended mission. We'll

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also explore a fascinating new theory that challenges everything we

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thought we knew about the emergence of intelligent life in

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the universe. Plus, we'll examine groundbreaking analysis from asteroid venue samples,

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peek into Earth's surprisingly dynamic inner core, and look at

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innovative new technology for exploring low gravity environments. Strap in

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for an exciting journey through the latest developments in space

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science and exploration. Let's get started. NASA's James Web Space

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Telescope has revolutionized our understanding of trans Neptunian objects, those

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mysterious celestial bodies orbiting beyond Neptune's path. In an unprecedented study,

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Web has provided the first detailed look at the composition

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of these distant objects, revealing surprising new insights about our

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solar system's formation. Trans Neptunian objects, or TNOs, include everything

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from dwarf planets like Pluto and Eris to smaller bodies

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like Aracoth. While scientists have known about these objects since

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Pluto's discovery in nineteen thirty, we've never been able to

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study their composition in such detail until now. Using Web's

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Near infrared spectrograph, scientists have analyzed over seventy five TNOs

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in the first two years of the telescope's operation. What

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they found was completely unexpected. These objects can be categorized

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into three distinct spectral classes based on their surface composition.

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The first group, dubbed bowl type, shows strong signatures of water, ice,

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and some carbon dioxide, along with silicate rich dust. The

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second classification, called double dip, reveals complex organic molecules mixed

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with carbon dioxide and carbon monocchilide ices. The third group,

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known as cliff type, contains the most complex organic materials

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of all, along with compounds like methanol. This classification system

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isn't just about categorizing space rocks. It's helping scientists piece

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together the story of our solar system's early days. The

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theory is that these different compositions reflect where these objects

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originally formed, with bold types developing closer to the Sun

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where temperatures were higher, while double dips and cliffs formed

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in the colder outer regions. Particularly intriguing is that all

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objects found in undisturbed cold classical orbits belong to the

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cliff category. This suggests these objects have remained largely unchanged

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since the Solar System's formation, making them invaluable time capsules

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of our cosmic history. Web continues to study these fascinating objects,

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with new observations planned to examine extreme t andos that

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venture far into interstellar space. These ongoing studies promise to

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reveal e more about the materials and conditions that shaped

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our Solar System billions of years ago. Next up, let's

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pay a visit to the International Space Station for an

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update from our two favorite astronauts. In recent months, there's

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been quite a bit of attention on NASA astronauts Sunny

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Williams and Butch Wilmore, who found themselves on an unexpectedly

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extended stay aboard the International Space Station. While some media

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outlets have painted this as a story of stranded astronauts,

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the reality is quite different from these dramatic headlines. The

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duo originally launched on Boeing Starliner spacecraft for what was

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planned as a ten day mission. However, when Starliner experienced

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thruster issues during docking maneuvers, NASA made the decision to

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adjust their plans. Rather than rushing a solution, they've incorporated

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Williams and Wilmore into the ongoing crew rotation schedule, specifically

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as part of SpaceX's Crew nine mission. Both astronauts have

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been quick to set the record straight about their situation.

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As Wilmore recently explained to CNN's Anderson Cooper, we don't

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feel abandoned, we don't feel stuck, we don't feel stranded.

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In fact, he emphasized that mission extensions are simply part

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of the job in human spaceflight, where being prepared for

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contingencies is fundamental to their training. What's particularly noteworthy is

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that both astronauts have maintained their regular duties throughout this

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extended stay. Williams has even managed to break the record

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for most cumulative space walking time by a woman during

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this period. They've been fully integrated into the station's operations

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with access to all necessary supplies and equipment. The situation

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gained additional attention when it became part of a political discussion,

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but the astronauts have remained focused on their mission. They're

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now scheduled to return to Earth in March following the

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arrival of Crew ten. As Wilmore puts it, they're not stranded.

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They're prepared and committed, which is exactly what you'd expect

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from seasoned space professionals. Both Williams and Wilmore, veterans of

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previous long duration space mission, have expressed their continued enjoyment

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of life in orbit. As Williams noted, it's just amazing

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how quickly you readapt to life in space. She even

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admitted that when the time comes to return home, they'll

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likely feel a touch of sadness at leaving their weightless

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environment behind. And just a little side note, how famous

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has that hair become? All right, let's get back on track.

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New research from Penn State is challenging our long held

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assumptions about the likelihood of intelligent life in the universe.

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For decades, scientists believe that humanity's emergence was an incredibly

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rare cosmic accident, But this fresh perspective suggests something quite different.

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The traditional view, known as the hard steps theory, argued

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that the evolution of intelligent life required an unlikely series

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of fortunate events. However, this new study proposes that intelligence

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might be more of an inevitable outcome of planetary evolution,

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both on Earth and potentially on other worlds. The researchers

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explain that earth environment wasn't always hospitable to complex life forms. Instead,

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it evolved through distinct phases, creating what they call windows

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of habitability. For instance, the development of complex animal life

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required specific oxygen levels in the atmosphere. This didn't happen

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by chance, it was a natural consequence of photosynthesizing microbes

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gradually changing Earth's atmosphere over time. What's particularly intriguing is

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their suggestion that humans didn't evolve early or late in

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Earth's history, but right on time when conditions were finally suitable.

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As Dan Mills, one of the study's authors, explains, it

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may simply be a matter of time before other planets

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achieved similar conditions, with some potentially reaching these milestones faster

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or slower than Earth did. The team, combining expertise from

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both astrophysics and geobiology argues that we should view evolution

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through the lens of geological time scales, rather than comparing

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it to the Sun's lifespan. This shift in perspective suggests

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that the development of intelligence might be more of a

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predictable process, unfolding as global conditions allow. This research opens

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up exciting possibilities about the prevalence of intelligent life in

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the universe. If intelligence emerges naturally when planetary conditions are right,

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rather than through an improbable series of accidents, we might

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not be as alone in the cosmos as we once thought.

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Next an update from the mission that just keeps on giving.

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In a remarkable scientific achievement, NASA's Osyrius Rex mission has

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revealed groundbreaking discoveries from its sample collection of asteroid Benu.

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The mission, which successfully returned approximately one hundred and twenty

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grams of pristine asteroid material to Earth last September, is

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providing unprecedented insights into the early Solar System. Analysis of

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the samples has yielded an extraordinary finding, the presence of

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tiny crystals of salt minerals, specifically halite and sylvite. This

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discovery is particularly significant because halleite is ecx extremely rare

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in meteorites, having been found in only three out of

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hundreds of thousands of known specimens on Earth. The presence

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of these salt minerals suggests that water activity may have

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once existed on benus parent body. The research team has

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also identified various other salt minerals, including sodium carbonates, phosphates, sulfates,

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and fluorides. These minerals typically form through the evaporation of brines,

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similar to the deposits we see in Earth's salt lakes.

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This discovery provides compelling evidence of ancient water activity in

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the earliest days of our solar system, But perhaps even

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more intriguing is what these salt minerals mean for the

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potential development of life's building blocks on Earth. These minerals

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act as catalysts for forming organic compounds such as nucleobases

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and nucleosides, the fundamental components of biological systems. Indeed, further

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analysis of the Benuz samples revealed a diverse array of

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organic compounds, including fourteen of the twenty amino acids found

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in earth biological processes, as well as all five nucleobases

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present in RNA and DNA. While this doesn't indicate the

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presence of life on Benu, it does suggest that the

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asteroid's parent body once provided an environment conducive to assembling

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life's essential components. These findings could have significant implications for

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our understanding of similar environments elsewhere in the Solar System,

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particularly on bodies like Saturn's moon, Enceladus and the dwarf

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planet series, both of which are known to have subsurface

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brine oceans. This pristine sample from Benu continues to offer

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new insights as researchers delve deeper into its analysis, potentially

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reshaping our understanding of the early Solar System and the

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distribution of life's building blocks throughout space. Let's turn our

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attention to some fascinating new findings about Earth's inner core

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that are challenging our previous understanding of our planet's deepest layer.

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Recent research has revealed that the inner core, long thought

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to be a solid sphere of iron and nickel, is

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actually far less rigid than scientists previously believed. Deep beneath

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our feet nearly three thousand miles below the surface, scientists

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have detected unexpected structural changes in the inner cores near surface.

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This discovery comes from analyzing seismic waves from one hundred

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and twenty one repeating earthquakes near the South Sandwich Islands

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over a period spanning from nineteen ninety one to twenty

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twenty four. What makes this particularly interesting is how it

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appears to interact with the outer core, that swirling layer

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of liquid metal that surrounds it. The turbulent motion of

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the outer core seems to be capable of actually deforming

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the inner core, something we hadn't observed happening on human

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time scales before. These findings have significant implications for our

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understanding of Earth's magnetic field, which acts as our planet's

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protective shield against harmful solar radiation. The interaction between the

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inner and outer core plays a crucial role in generating

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and maintaining this magnetic field. If the inner core is

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more malleable than we thought, it could help explain observed

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variations in the field's strength and stability over time. The

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research also supports previous observations suggesting that the inner core's

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rotation isn't constant. Some models indicate it may have slowed

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or even reverse direction around twenty ten, which aligns with

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observed changes in seismic wave patterns. This could potentially influence

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subtle changes in Earth's rotation and even the length of

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our days. This new understanding of our planet's core is

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forcing us to reconsider how Earth's internal engine works and

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opens up exciting new questions about the dynamic processes occurring

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deep within our planet. In our final science story today,

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we're looking at an innovative new approach to exploring low

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gravity environments like asteroids and other celestial bodies. Researchers at

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UCLA's Robotics and Mechanisms Laboratory have developed a fascinating new

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robot system called splitter. It's the space and planetary limbed

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Intelligent Tether Technology exploration robot. What makes Splitter unique is

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its design. Imagine two small, four legged robots connected by

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a tether working together like a high tech version of

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the game Bola. But don't let this simple description fool you.

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The system employs sophisticated control mechanisms that allow it to

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move with remarkable stability, even in airless environments. The team

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chose a jumping locomotion method rather than traditional wheeled rovers

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because it's much more effective for navigating the jagged, uneven

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terrain found on asteroids, and unlike flying robots, it doesn't

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need an atmosphere to operate. Each robot weighs just about

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ten kilograms on Earth, making them even more agile in

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low gravity environments. What's particularly clever about Splitter is how

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it maintains control during movement. The system uses something called

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inertial morphing, where the robots adjust their leg configurations and

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tether length to stabilize their motion. This is managed through

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a sophisticated predictive control system that can calculate exactly how

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to position each component for optimal stability. The robots can

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even work together for tasks like exploring cave systems, with

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one robot anchoring itself while the other repels down using

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their connecting tether. While Splitter currently exists mainly as a

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computer model, it represents an exciting new direction in space

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exploration technology that could one day help us investigate some

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of the most challenging environments in our Solar system. While

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that brings us to the end of another fascinating episode

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of Astronomy Daily. From Web's groundbreaking discoveries beyond Neptune to

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innovative space exploration robots, we've covered quite a journey through

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space science today. If you'd like to stay up to

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or wherever you get your podcasts. This is Anna. Thank

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amazing stories from the Cosmosday Stars Star