Feb. 6, 2025

New Life Detection Method, Understanding Mars, and Unveiling Cosmic Superstructures: S04E32

New Life Detection Method, Understanding Mars, and Unveiling Cosmic Superstructures: S04E32

Astronomy Daily - The Podcast: S04E32
In this episode of Astronomy Daily, host Anna explores a range of captivating developments from the cosmic frontier, featuring groundbreaking research on life detection methods, seismic discoveries on Mars, and...

Season 4
Astronomy Daily - The Podcast: S04E32
In this episode of Astronomy Daily, host Anna explores a range of captivating developments from the cosmic frontier, featuring groundbreaking research on life detection methods, seismic discoveries on Mars, and the celebration of Pluto's discovery. Join us as we dive into the latest astronomical news and insights that are reshaping our understanding of the universe.
Highlights:
- Revolutionary Life Detection Method: Discover a new and simple technique developed by researchers in Germany to detect microorganisms' movement towards chemicals, potentially transforming our search for extraterrestrial life on planets like Mars and Europa.
- Mars Seismic Highway: Learn about the groundbreaking discovery of a 'seismic highway' on Mars, revealing how seismic waves travel deeper than previously thought, reshaping our understanding of the Martian interior and planetary evolution.
- Celebrating Pluto's Discovery: Get the details on the upcoming Weinhardt Pluto Festival at Lowell Observatory, honoring Clyde Tombaugh's historic discovery of Pluto and the 10th anniversary of NASA's New Horizons mission.
- Gaia 4B Exoplanet Discovery: Explore the remarkable findings of Gaia 4B, one of the largest exoplanets discovered, and the intriguing questions it raises about the nature of planets and failed stars.
- The Enormous Quipu Structure: Uncover the discovery of Quipu, the largest cosmic structure ever observed, and its implications for our understanding of the universe's architecture and the distribution of matter.
- NASA's First Live Twitch Stream: Hear about NASA's historic live Twitch stream from the International Space Station, aimed at engaging new audiences and inspiring the next generation of space explorers.
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 - New life detection method using chemotaxis
05:30 - Insights from Mars' seismic highway discovery
10:15 - Upcoming Weinhardt Pluto Festival details
14:00 - Discovery of Gaia 4B exoplanet
18:20 - Quipu: the largest cosmic structure discovered
22:00 - NASA's first live Twitch stream from the ISS
25:00 - Conclusion and upcoming content
✍️ Episode References
Life Detection Method Research
[Life Detection Method](https://www.scientificreports.com)
Mars Seismic Study
[Mars Seismic Study](https://www.nasa.gov/insight)
Weinhardt Pluto Festival
[Weinhardt Pluto Festival](https://www.lowell.edu)
Gaia 4B Discovery
[Gaia 4B](https://www.esa.int/Science_Exploration/Gaia)
Quipu Structure
[Quipu Structure](https://www.astrobiology.com)
NASA Twitch Stream
[NASA Twitch Stream](https://www.nasa.gov/live)
Astronomy Daily
[Astronomy Daily](http://www.astronomydaily.io)

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

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Welcome to Astronomy Daily, your source for the latest space

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in astronomy news. I'm Anna, and today we're covering some

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fascinating stories from across the cosmos, from groundbreaking research and

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alien life detection to massive cosmic structures, So let's get

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straight into it. In an exciting development for the search

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for extraterrestrial life, researchers in Germany have created a new

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and remarkably simple method that could revolutionize how we look

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for life on other planets. The technique focuses on detecting

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movement in microorganisms, specifically their attraction to certain chemicals, a

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process known as chemotaxis. The team tested their method on

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three different types of microbes, two bacteria and one archea,

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using an amino acid called el Serina's bait. All three

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species showed clear movement toward the chemical, which is particularly

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significant since these organisms were chosen for their ability to

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survive in extreme conditions, similar to what we might find

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on Mars. What makes this discovery particularly promising is its simplicity.

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Instead of requiring complex equipment, the method uses a basic

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slide with two chambers separated by a thin membrane. Microbes

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are placed on one side, and l serene on the

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other If living organisms are present and capable of movement,

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they'll naturally swim through the membrane toward the chemical. The

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implications for future space missions are significant. L serene is

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believed to exist on Mars, and if Martian life shares

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any biochemical similarities with Earth life, this method could provide

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a straightforward way to detect it. While some modifications would

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be needed to make the system spaceworthy and automated, the

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fundamental simplicity of the approach makes it an attractive option

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for future missions. This method could be particularly valuable for

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exploring places like Europa Jupiter's moon, where we suspect there

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might be oceans that could harbor life. By making life

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detection cheaper and faster, future missions could achieve more with

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fewer resources, potentially accelerating our search for life beyond Earth.

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Let's get a Mars update now. A fascinating discovery has

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emerged from Mars, where scientists have uncovered what they're calling

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a seismic highway deep within the red planet. This finding

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comes from analyzing data from NASA's Insight Lander, which has

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completely changed our understanding of how seismic waves travel through Mars.

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By comparing marsquake data with impact craters identified by the

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Mars Reconnaissance Orbiter, researchers found something unexpected. When meteoroids strike Mars,

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they create seismic waves that travel much deeper into the

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planet than previously thought. Rather than being dampened by the

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crust as expected, these waves appear to find a more

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direct route through the planet's mantle. One particular impact crater,

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measuring seventy one feet in diameter, proved especially revealing. The

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seismic signals from this impact were detected at the Cerberus

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Fossy region, over one thousand miles away from the impact site.

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This remarkable distance far exceeded what scientists thought possible based

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on existing models of Mars's interior structure. The discovery is

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forcing scientists to reassess their understanding of Mars's composition and

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internal structure. As one researcher put it, they used to

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think most seismic energy was confined to traveling within the

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Martian crust. Instead, they've found this deeper, faster pathway through

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the mantle, allowing seismic signals to reach much more distant

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regions of the planet. This breakthrough was made possible through

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the clever use of artificial intelligence. Scientists developed a machine

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learning algorithm that could quickly analyze tens of thousands of

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images from the Mars Reconnaissance orbiter, identifying impact craters in

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a matter of days, rather than the years it would

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have taken to do manually. What's particularly exciting about this

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discovery is how it might help us better understand not

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just Mars, but other rocky planets as well. By revealing

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these unexpected properties of Mars's interior, were gaining valuable insights

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into planetary evolution that could apply to Earth, the Moon,

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and beyond. Here's news of a party. I wouldn't mind

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going to. Maybe my invitation's in the mail, but I

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won't hold my breathe. The Lowell Observatory in Flagstaff, Arizona,

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is gearing up for an exciting celebration as it marks

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the ninety fifth anniversary of one of astronomy's most significant discoveries.

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Their sixth annual Wyhart Pluto Festival, running from February thirteenth

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to seventeenth, will commemorate Clyde Tombaugh's historic discovery of Pluto

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at this very location back in nineteen thirty. This year's

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festival theme, to Boldly Go Beyond New Horizons, carries special

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significance as it also marks the tenth anniversary of NASA's

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New Horizons mission, which gave us our first detailed glimpses

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of this fascinating dwarf planet. The celebration promises an engaging

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mix of educational activities and social events, including a unique

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Pluto pub crawl and exclusive book signings at their new

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Astronomy Discovery Center. Among the distinguished guests is Adam Nimoy,

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son of Star Trek legend Leonard Nimoy, who brings an

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intriguing connection between science fiction and real world astronomy. He'll

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be joining an impressive panel alongside New Horizons Principal investigator

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Alan Stern and renowned comet hunter David Levy at the

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Orpheum Theater. The connection between the Niemoy family and the

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Observatory runs deeper than you might expect. Leonard Nimoy, who

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grew up in Boston's immigrant West End, had a genuine

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fascination with astronomy and space exploration. He owned his own

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telescope and even visited the Lowell Observatory, bringing home models

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of satellites from his visits to various space facilities. The

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festival will also feature a special presentation where Adam Nimoy

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will discuss his book The Most Human, exploring his relationship

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with his father, followed by a screening of his documentary

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For the Love of Spock. It's a fitting tribute that

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bridges the gap between science fiction's ability to inspire and

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the real world pursuit of astronomical discovery that continues at

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low observatory to this day. In an extraordinary discovery that's

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pushing the boundaries of our understanding, astronomers have identified one

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of the largest exoplanets ever found, orbiting a relatively small

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star about two forty four light years from Earth named

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Gaia four B. This mysterious world was discovered through the

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European Space Agency's Gaia mission, which detected the planet by

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observing how its massive gravitational pull affects its parent star's

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movement through space. This celestial giant boastsa mass eleven point

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eight times that of Jupiter, making it a truly remarkable find,

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especially considering it orbits a relatively modest orange dwarf star

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with just sixty four percent of our Sun's mass while

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it follows an orbit similar in distance to Mars's path

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around our Sun. Its cooler star means temperatures on Gaya

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four B are likely quite chilly. What makes this discovery

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particularly intriguing is how it challenges our traditional classifications of

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cosmic objects. The line between what we call a planet

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and what we consider a failed star or brown dwarf

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becomes remarkably blurry with gyapour B. While its mass falls

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below the typical thirteen jupiter mass threshold used to define

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brown dwarfs, the way it likely formed raises fascinating questions

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about its true nature. The star's chemical composition suggests there

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might not have been enough heavy elements available during the

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system's formation to build such a massive planet through traditional

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planetary formation processes. This hints at the possibility that Guya

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four B may have formed more like a star through

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the gravitational collapse of a gas cloud, rather than the

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way we think most planets come together. Whether we call

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it a supersized planet or a failed star, giafour B

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represents one of the most massive worlds ever found around

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a lower mass star, making it an invaluable discovery for

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understanding how these extraordinary systems form and evolve. As we

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continue to analyze data from the Gay emission, we may

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find more of these boundary pushing worlds that help us

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better understand the diverse range of objects populating our galaxy.

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Now try and get your brain around this. Just when

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we thought we had a handle on the scale of

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cosmic structures, astronomers have made a mind bending discovery that's

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forcing us to think even bigger. They've found what appears

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to be the largest structure ever observed in our universe,

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and they've named it QUIPU, after an ancient ink and

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measuring system. To give you an idea of just how

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massive this structure is, it contains roughly two hundred quadrillion

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times the mass of our sun. That's a number so

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large it's rarely used, even in astronomy, where we regularly

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deal with cosmic scale measurements. And if that wasn't impressive enough,

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KEEPU stretches across one point three billion light years of space.

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This superstructure isn't just breaking records, it's reshaping our understanding

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of the cosmos. Kipu and four other new ll discovered

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superstructures together contain forty five percent of all galaxy clusters

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in their region of space, thirty percent of the galaxies,

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and twenty five percent of all matter. They're essentially cosmic

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metropolises on an unimaginable scale. These structures are so massive

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that they actually distort our view of the universe. Their

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immense gravitational influence affects everything from our measurements of the

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cosmic microwave background the afterglow of the Big Bang, to

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our calculations of how fast the universe is expanding. They

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even act as enormous cosmic lenses, bending light from distant

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objects as it travels toward Earth. While our current models

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of the universe can account for structures like Kipu, these

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cosmic giants won't last forever. Scientists predict that over time,

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these superstructures will eventually break apart into smaller units, but

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for now they stand as remarkable cosmic monuments, offering us

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unprecedented insights into the largest scale architecture of our universe

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and challengelenging our understanding of how such enormous structures could

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have formed in the first place. In a groundbreaking move

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that brings space exploration into the modern digital age, NASA

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is hosting its first ever live Twitch stream directly from

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the International Space Station. This historic broadcast, scheduled for February twelfth,

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marks a significant step in NASA's efforts to connect with

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new audiences through contemporary platforms. During this pioneering stream, viewers

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will have a unique opportunity to interact with NASA astronaut

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Don Pettitt, whose currently orbiting Earth aboard the Space Station,

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and Matt Dominic, who recently returned from the Crew eight mission.

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They'll be sharing insights about daily life in orbit and

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discussing the fascinating research being conducted in the microgravity environment

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of the ISS. This isn't just another space broadcast. It's

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part of NASA's broader strategy to engage with digital audiences

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where they are. As Britney Brown, director of NASA's Office

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of Communications, Digital and Technology de Vision, explains, this stream

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is just the beginning. The agency is planning more Twitch

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exclusive content, responding directly to feedback from digital creators who've

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been asking for content tailored to their communities. The stream

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will do more than just showcase life in space. It's

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designed to highlight ways for viewers to get involved with

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NASA's mission, from citizen science projects to educational programs. Aimed

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at inspiring the next generation of space explorers, the Artemis generation.

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This broadcast represents a new chapter in how we engage

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with space exploration. This initiative comes as part of NASA's

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expanding digital presence, which includes the recent launch of their

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own streaming platform, NASA Plus, and redesigned websites. It's a

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clear signal that the Space Agency is committed to making

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space exploration more accessible and engaging for everyone, wherever they

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might be, even if that's just watching from their computer

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screens two hundred and fifty miles below the International Space Station.

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Thanks for joining me today on Astronomy Daily. As always,

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it's been a pleasure bringing you the latest developments from

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the fascinating world of space and astronomy. I'm anna, and

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if you're hungry for more cosmic content, you can catch

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up on all our latest stories at Astronomydaily dot io,

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where we maintain a constantly updating news feed of space

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and astronomy news. Don't forget to join our growing community

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on social media. You can find us by searching for

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All our previous episodes are available there too. So you'll

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never miss out on the wonders of the cosmos. Until

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next time, keep looking up and stay curious about the

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universe around us. Star Story is the sol