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

0:00 Speaker 1: Welcome to Astronomy Daily, your source for the latest space

0:03 Speaker 1: in astronomy news. I'm Anna, and today we're covering some

0:06 Speaker 1: fascinating stories from across the cosmos, from groundbreaking research and

0:10 Speaker 1: alien life detection to massive cosmic structures, So let's get

0:15 Speaker 1: straight into it. In an exciting development for the search

0:19 Speaker 1: for extraterrestrial life, researchers in Germany have created a new

0:23 Speaker 1: and remarkably simple method that could revolutionize how we look

0:27 Speaker 1: for life on other planets. The technique focuses on detecting

0:30 Speaker 1: movement in microorganisms, specifically their attraction to certain chemicals, a

0:35 Speaker 1: process known as chemotaxis. The team tested their method on

0:39 Speaker 1: three different types of microbes, two bacteria and one archea,

0:43 Speaker 1: using an amino acid called el Serina's bait. All three

0:46 Speaker 1: species showed clear movement toward the chemical, which is particularly

0:50 Speaker 1: significant since these organisms were chosen for their ability to

0:54 Speaker 1: survive in extreme conditions, similar to what we might find

0:57 Speaker 1: on Mars. What makes this discovery particularly promising is its simplicity.

1:03 Speaker 1: Instead of requiring complex equipment, the method uses a basic

1:07 Speaker 1: slide with two chambers separated by a thin membrane. Microbes

1:11 Speaker 1: are placed on one side, and l serene on the

1:14 Speaker 1: other If living organisms are present and capable of movement,

1:17 Speaker 1: they'll naturally swim through the membrane toward the chemical. The

1:20 Speaker 1: implications for future space missions are significant. L serene is

1:24 Speaker 1: believed to exist on Mars, and if Martian life shares

1:27 Speaker 1: any biochemical similarities with Earth life, this method could provide

1:31 Speaker 1: a straightforward way to detect it. While some modifications would

1:35 Speaker 1: be needed to make the system spaceworthy and automated, the

1:39 Speaker 1: fundamental simplicity of the approach makes it an attractive option

1:42 Speaker 1: for future missions. This method could be particularly valuable for

1:46 Speaker 1: exploring places like Europa Jupiter's moon, where we suspect there

1:50 Speaker 1: might be oceans that could harbor life. By making life

1:53 Speaker 1: detection cheaper and faster, future missions could achieve more with

1:57 Speaker 1: fewer resources, potentially accelerating our search for life beyond Earth.

2:02 Speaker 1: Let's get a Mars update now. A fascinating discovery has

2:06 Speaker 1: emerged from Mars, where scientists have uncovered what they're calling

2:09 Speaker 1: a seismic highway deep within the red planet. This finding

2:13 Speaker 1: comes from analyzing data from NASA's Insight Lander, which has

2:17 Speaker 1: completely changed our understanding of how seismic waves travel through Mars.

2:21 Speaker 1: By comparing marsquake data with impact craters identified by the

2:25 Speaker 1: Mars Reconnaissance Orbiter, researchers found something unexpected. When meteoroids strike Mars,

2:30 Speaker 1: they create seismic waves that travel much deeper into the

2:34 Speaker 1: planet than previously thought. Rather than being dampened by the

2:37 Speaker 1: crust as expected, these waves appear to find a more

2:40 Speaker 1: direct route through the planet's mantle. One particular impact crater,

2:44 Speaker 1: measuring seventy one feet in diameter, proved especially revealing. The

2:48 Speaker 1: seismic signals from this impact were detected at the Cerberus

2:51 Speaker 1: Fossy region, over one thousand miles away from the impact site.

2:55 Speaker 1: This remarkable distance far exceeded what scientists thought possible based

2:59 Speaker 1: on existing models of Mars's interior structure. The discovery is

3:04 Speaker 1: forcing scientists to reassess their understanding of Mars's composition and

3:08 Speaker 1: internal structure. As one researcher put it, they used to

3:11 Speaker 1: think most seismic energy was confined to traveling within the

3:15 Speaker 1: Martian crust. Instead, they've found this deeper, faster pathway through

3:20 Speaker 1: the mantle, allowing seismic signals to reach much more distant

3:24 Speaker 1: regions of the planet. This breakthrough was made possible through

3:27 Speaker 1: the clever use of artificial intelligence. Scientists developed a machine

3:32 Speaker 1: learning algorithm that could quickly analyze tens of thousands of

3:36 Speaker 1: images from the Mars Reconnaissance orbiter, identifying impact craters in

3:40 Speaker 1: a matter of days, rather than the years it would

3:42 Speaker 1: have taken to do manually. What's particularly exciting about this

3:46 Speaker 1: discovery is how it might help us better understand not

3:50 Speaker 1: just Mars, but other rocky planets as well. By revealing

3:54 Speaker 1: these unexpected properties of Mars's interior, were gaining valuable insights

3:59 Speaker 1: into planetary evolution that could apply to Earth, the Moon,

4:02 Speaker 1: and beyond. Here's news of a party. I wouldn't mind

4:05 Speaker 1: going to. Maybe my invitation's in the mail, but I

4:09 Speaker 1: won't hold my breathe. The Lowell Observatory in Flagstaff, Arizona,

4:13 Speaker 1: is gearing up for an exciting celebration as it marks

4:16 Speaker 1: the ninety fifth anniversary of one of astronomy's most significant discoveries.

4:20 Speaker 1: Their sixth annual Wyhart Pluto Festival, running from February thirteenth

4:24 Speaker 1: to seventeenth, will commemorate Clyde Tombaugh's historic discovery of Pluto

4:29 Speaker 1: at this very location back in nineteen thirty. This year's

4:32 Speaker 1: festival theme, to Boldly Go Beyond New Horizons, carries special

4:36 Speaker 1: significance as it also marks the tenth anniversary of NASA's

4:40 Speaker 1: New Horizons mission, which gave us our first detailed glimpses

4:43 Speaker 1: of this fascinating dwarf planet. The celebration promises an engaging

4:48 Speaker 1: mix of educational activities and social events, including a unique

4:52 Speaker 1: Pluto pub crawl and exclusive book signings at their new

4:56 Speaker 1: Astronomy Discovery Center. Among the distinguished guests is Adam Nimoy,

5:01 Speaker 1: son of Star Trek legend Leonard Nimoy, who brings an

5:04 Speaker 1: intriguing connection between science fiction and real world astronomy. He'll

5:09 Speaker 1: be joining an impressive panel alongside New Horizons Principal investigator

5:13 Speaker 1: Alan Stern and renowned comet hunter David Levy at the

5:16 Speaker 1: Orpheum Theater. The connection between the Niemoy family and the

5:20 Speaker 1: Observatory runs deeper than you might expect. Leonard Nimoy, who

5:24 Speaker 1: grew up in Boston's immigrant West End, had a genuine

5:27 Speaker 1: fascination with astronomy and space exploration. He owned his own

5:31 Speaker 1: telescope and even visited the Lowell Observatory, bringing home models

5:36 Speaker 1: of satellites from his visits to various space facilities. The

5:39 Speaker 1: festival will also feature a special presentation where Adam Nimoy

5:43 Speaker 1: will discuss his book The Most Human, exploring his relationship

5:47 Speaker 1: with his father, followed by a screening of his documentary

5:50 Speaker 1: For the Love of Spock. It's a fitting tribute that

5:54 Speaker 1: bridges the gap between science fiction's ability to inspire and

5:57 Speaker 1: the real world pursuit of astronomical discovery that continues at

6:01 Speaker 1: low observatory to this day. In an extraordinary discovery that's

6:05 Speaker 1: pushing the boundaries of our understanding, astronomers have identified one

6:09 Speaker 1: of the largest exoplanets ever found, orbiting a relatively small

6:13 Speaker 1: star about two forty four light years from Earth named

6:17 Speaker 1: Gaia four B. This mysterious world was discovered through the

6:21 Speaker 1: European Space Agency's Gaia mission, which detected the planet by

6:26 Speaker 1: observing how its massive gravitational pull affects its parent star's

6:30 Speaker 1: movement through space. This celestial giant boastsa mass eleven point

6:34 Speaker 1: eight times that of Jupiter, making it a truly remarkable find,

6:38 Speaker 1: especially considering it orbits a relatively modest orange dwarf star

6:42 Speaker 1: with just sixty four percent of our Sun's mass while

6:46 Speaker 1: it follows an orbit similar in distance to Mars's path

6:48 Speaker 1: around our Sun. Its cooler star means temperatures on Gaya

6:52 Speaker 1: four B are likely quite chilly. What makes this discovery

6:55 Speaker 1: particularly intriguing is how it challenges our traditional classifications of

7:00 Speaker 1: cosmic objects. The line between what we call a planet

7:04 Speaker 1: and what we consider a failed star or brown dwarf

7:07 Speaker 1: becomes remarkably blurry with gyapour B. While its mass falls

7:11 Speaker 1: below the typical thirteen jupiter mass threshold used to define

7:15 Speaker 1: brown dwarfs, the way it likely formed raises fascinating questions

7:18 Speaker 1: about its true nature. The star's chemical composition suggests there

7:23 Speaker 1: might not have been enough heavy elements available during the

7:25 Speaker 1: system's formation to build such a massive planet through traditional

7:30 Speaker 1: planetary formation processes. This hints at the possibility that Guya

7:35 Speaker 1: four B may have formed more like a star through

7:38 Speaker 1: the gravitational collapse of a gas cloud, rather than the

7:42 Speaker 1: way we think most planets come together. Whether we call

7:46 Speaker 1: it a supersized planet or a failed star, giafour B

7:50 Speaker 1: represents one of the most massive worlds ever found around

7:53 Speaker 1: a lower mass star, making it an invaluable discovery for

7:56 Speaker 1: understanding how these extraordinary systems form and evolve. As we

8:01 Speaker 1: continue to analyze data from the Gay emission, we may

8:04 Speaker 1: find more of these boundary pushing worlds that help us

8:06 Speaker 1: better understand the diverse range of objects populating our galaxy.

8:11 Speaker 1: Now try and get your brain around this. Just when

8:13 Speaker 1: we thought we had a handle on the scale of

8:15 Speaker 1: cosmic structures, astronomers have made a mind bending discovery that's

8:20 Speaker 1: forcing us to think even bigger. They've found what appears

8:23 Speaker 1: to be the largest structure ever observed in our universe,

8:26 Speaker 1: and they've named it QUIPU, after an ancient ink and

8:30 Speaker 1: measuring system. To give you an idea of just how

8:33 Speaker 1: massive this structure is, it contains roughly two hundred quadrillion

8:37 Speaker 1: times the mass of our sun. That's a number so

8:40 Speaker 1: large it's rarely used, even in astronomy, where we regularly

8:43 Speaker 1: deal with cosmic scale measurements. And if that wasn't impressive enough,

8:48 Speaker 1: KEEPU stretches across one point three billion light years of space.

8:52 Speaker 1: This superstructure isn't just breaking records, it's reshaping our understanding

8:56 Speaker 1: of the cosmos. Kipu and four other new ll discovered

9:00 Speaker 1: superstructures together contain forty five percent of all galaxy clusters

9:05 Speaker 1: in their region of space, thirty percent of the galaxies,

9:08 Speaker 1: and twenty five percent of all matter. They're essentially cosmic

9:12 Speaker 1: metropolises on an unimaginable scale. These structures are so massive

9:17 Speaker 1: that they actually distort our view of the universe. Their

9:20 Speaker 1: immense gravitational influence affects everything from our measurements of the

9:24 Speaker 1: cosmic microwave background the afterglow of the Big Bang, to

9:28 Speaker 1: our calculations of how fast the universe is expanding. They

9:31 Speaker 1: even act as enormous cosmic lenses, bending light from distant

9:35 Speaker 1: objects as it travels toward Earth. While our current models

9:39 Speaker 1: of the universe can account for structures like Kipu, these

9:42 Speaker 1: cosmic giants won't last forever. Scientists predict that over time,

9:46 Speaker 1: these superstructures will eventually break apart into smaller units, but

9:50 Speaker 1: for now they stand as remarkable cosmic monuments, offering us

9:54 Speaker 1: unprecedented insights into the largest scale architecture of our universe

9:59 Speaker 1: and challengelenging our understanding of how such enormous structures could

10:03 Speaker 1: have formed in the first place. In a groundbreaking move

10:07 Speaker 1: that brings space exploration into the modern digital age, NASA

10:11 Speaker 1: is hosting its first ever live Twitch stream directly from

10:15 Speaker 1: the International Space Station. This historic broadcast, scheduled for February twelfth,

10:20 Speaker 1: marks a significant step in NASA's efforts to connect with

10:23 Speaker 1: new audiences through contemporary platforms. During this pioneering stream, viewers

10:28 Speaker 1: will have a unique opportunity to interact with NASA astronaut

10:32 Speaker 1: Don Pettitt, whose currently orbiting Earth aboard the Space Station,

10:35 Speaker 1: and Matt Dominic, who recently returned from the Crew eight mission.

10:40 Speaker 1: They'll be sharing insights about daily life in orbit and

10:43 Speaker 1: discussing the fascinating research being conducted in the microgravity environment

10:47 Speaker 1: of the ISS. This isn't just another space broadcast. It's

10:50 Speaker 1: part of NASA's broader strategy to engage with digital audiences

10:54 Speaker 1: where they are. As Britney Brown, director of NASA's Office

10:57 Speaker 1: of Communications, Digital and Technology de Vision, explains, this stream

11:02 Speaker 1: is just the beginning. The agency is planning more Twitch

11:05 Speaker 1: exclusive content, responding directly to feedback from digital creators who've

11:10 Speaker 1: been asking for content tailored to their communities. The stream

11:13 Speaker 1: will do more than just showcase life in space. It's

11:16 Speaker 1: designed to highlight ways for viewers to get involved with

11:19 Speaker 1: NASA's mission, from citizen science projects to educational programs. Aimed

11:24 Speaker 1: at inspiring the next generation of space explorers, the Artemis generation.

11:29 Speaker 1: This broadcast represents a new chapter in how we engage

11:32 Speaker 1: with space exploration. This initiative comes as part of NASA's

11:36 Speaker 1: expanding digital presence, which includes the recent launch of their

11:40 Speaker 1: own streaming platform, NASA Plus, and redesigned websites. It's a

11:44 Speaker 1: clear signal that the Space Agency is committed to making

11:47 Speaker 1: space exploration more accessible and engaging for everyone, wherever they

11:52 Speaker 1: might be, even if that's just watching from their computer

11:55 Speaker 1: screens two hundred and fifty miles below the International Space Station.

12:00 Speaker 1: Thanks for joining me today on Astronomy Daily. As always,

12:04 Speaker 1: it's been a pleasure bringing you the latest developments from

12:07 Speaker 1: the fascinating world of space and astronomy. I'm anna, and

12:11 Speaker 1: if you're hungry for more cosmic content, you can catch

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12:37 Speaker 1: never miss out on the wonders of the cosmos. Until

12:40 Speaker 1: next time, keep looking up and stay curious about the

12:44 Speaker 1: universe around us. Star Story is the sol