Astronomy Daily - The Podcast: S04E31
In this episode of Astronomy Daily, host Anna takes us on an exhilarating journey through recent space discoveries and developments that are reshaping our understanding of the cosmos. From the dramatic origin of lunar canyons to the captivating Bullseye Galaxy, this episode is filled with groundbreaking insights and exciting updates from the world of space exploration.
Highlights:
- Lunar Canyons Unveiled: Discover the fascinating story behind Vallis Schrodinger and Vallis Planck, two massive canyons on the Moon, formed by a colossal impact event 3.8 billion years ago. Learn how this discovery could influence future lunar exploration and the opportunity to study ancient rocks near NASA's Artemis landing site.
- Blue Origin's Lunar Gravity Simulation: Join us as we celebrate Blue Origin's successful New Shepard launch, marking a significant milestone in simulating lunar gravity conditions. This mission opens new avenues for testing technologies crucial for future lunar exploration.
- The Bullseye Galaxy: Explore the stunning discovery of the Bullseye Galaxy, showcasing nine distinct ring-shaped ripples created by a galactic collision. This observation not only confirms theoretical predictions but also provides insight into the future of our own Milky Way as it merges with Andromeda.
- Lunar Trailblazer Mission: Get the latest on SpaceX's upcoming Lunar Trailblazer mission, aimed at mapping water distribution on the Moon. This innovative mission promises to enhance our understanding of lunar resources and their potential for future human settlement.
- NASA’s Europa Clipper Progress: Hear about the early milestones of NASA's Europa Clipper mission, which is on its way to study Jupiter's icy moon. The spacecraft's first images and upcoming Mars flyby are paving the way for its ambitious scientific objectives.
- Alien Civilizations and Earth's Signature : Delve into a compelling study examining how far away alien civilizations could detect signs of Earth's existence. This research offers intriguing insights into our technological footprint and its implications for the search for extraterrestrial intelligence.
For more cosmic updates, visit our website at astronomydaily.io (http://www.astronomydaily.io) . Join our community on social media by searching for #AstroDailyPod on Facebook, X, YouTubeMusic, Tumblr, and TikTok. Don't forget to subscribe to the podcast on Apple Podcasts, Spotify, iHeartRadio, or wherever you get your podcasts.
Thank you for tuning in. This is Anna signing off. Until next time, keep looking up and stay curious about the wonders of our universe.
00:00 - Welcome back to Astronomy Daily
01:02 - Origins of lunar canyons near the south pole
05:30 - Blue Origin's lunar gravity simulation milestone
10:15 - Discovery of the Bullseye Galaxy and its ring structures
14:00 - Upcoming Lunar Trailblazer mission details
18:20 - Progress of NASA’s Europa Clipper mission
22:00 - Study on alien civilizations detecting Earth
25:00 - Conclusion and upcoming content
✍️ Episode References
Lunar Canyons Study
[Lunar Canyons](https://www.nature.com/articles)
Blue Origin New Shepard
[Blue Origin](https://www.nasa.gov/lunartrailblazer)
NASA Europa Clipper
[NASA Europa Clipper](https://www.nasa.gov/europa-clipper)
SETI Institute Study
[SETI Institute](http://www.astronomydaily.io)
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Episode link: https://play.headliner.app/episode/25429525?utm_source=youtube
00:00:00 --> 00:00:02 welcome to astronomy daily I'm Anna and
00:00:02 --> 00:00:03 we have a great lineup of space
00:00:03 --> 00:00:05 discoveries and developments to share
00:00:05 --> 00:00:07 with you today from ancient lunar
00:00:07 --> 00:00:09 canyons formed by catastrophic impacts
00:00:09 --> 00:00:11 to spectacular Galactic collisions
00:00:11 --> 00:00:13 creating Cosmic Ripples and
00:00:13 --> 00:00:14 groundbreaking missions exploring our
00:00:14 --> 00:00:16 solar system we'll journey through some
00:00:16 --> 00:00:18 of the most fascinating recent
00:00:18 --> 00:00:20 developments in space exploration and
00:00:20 --> 00:00:23 astronomy our stories today will take us
00:00:23 --> 00:00:25 from the moon's mysterious South Pole to
00:00:25 --> 00:00:27 the far reaches of space where the
00:00:27 --> 00:00:30 spectacular Bullseye galaxy shows us the
00:00:30 --> 00:00:31 aftermath of an incredible Cosmic
00:00:31 --> 00:00:34 Collision we'll also check in on several
00:00:34 --> 00:00:36 exciting space missions including blue
00:00:36 --> 00:00:38 origin's latest achievement and NASA's
00:00:38 --> 00:00:40 ongoing explorations of our Cosmic
00:00:40 --> 00:00:42 neighborhood a lot to cover so let's
00:00:42 --> 00:00:44 kick things off with our own
00:00:44 --> 00:00:46 Moon a fascinating new study has
00:00:46 --> 00:00:48 revealed the dramatic origin story of
00:00:48 --> 00:00:50 two enormous Canyons near the moon's
00:00:50 --> 00:00:53 South Pole these massive structures
00:00:53 --> 00:00:55 known as valis Schrodinger and valis
00:00:55 --> 00:00:57 plank were carved out in less than 10
00:00:57 --> 00:00:59 minutes by an extraordinary Cosmic event
00:00:59 --> 00:01:01 that occurred three 3.8 billion years
00:01:01 --> 00:01:03 ago according to research published in
00:01:03 --> 00:01:06 nature Communications it all began with
00:01:06 --> 00:01:08 a massive impact near the lunar South
00:01:08 --> 00:01:11 Pole this Collision sent a curtain of
00:01:11 --> 00:01:13 rock flying away from the impact site
00:01:13 --> 00:01:15 and when these rocks Came Crashing back
00:01:15 --> 00:01:17 down they struck the lunar surface with
00:01:17 --> 00:01:20 devastating Force the energy released
00:01:20 --> 00:01:24 was truly astronomical about 130 times
00:01:24 --> 00:01:25 greater than Earth's entire nuclear
00:01:25 --> 00:01:28 weapons inventory these Falling Rocks
00:01:28 --> 00:01:30 created what planetary geologist David
00:01:30 --> 00:01:32 cring describes as a staccato like
00:01:32 --> 00:01:34 series of impacts bang bang bang that
00:01:34 --> 00:01:38 carved out two incredible Canyons to put
00:01:38 --> 00:01:39 their size in perspective while the
00:01:39 --> 00:01:43 Grand Canyon reaches depths of 1.9 km
00:01:43 --> 00:01:45 these lunar Canyons plunge as deep as
00:01:45 --> 00:01:49 3.5 km into the moon's surface they
00:01:49 --> 00:01:53 stretch for about 270 and 280 km in
00:01:53 --> 00:01:55 length cutting straight lines across the
00:01:55 --> 00:01:56 lunar
00:01:56 --> 00:01:58 landscape what makes this discovery
00:01:58 --> 00:02:00 particularly significant for future
00:02:00 --> 00:02:03 lunar exploration is its location the
00:02:03 --> 00:02:06 impact site lies about 125 km from where
00:02:06 --> 00:02:09 NASA's emis astronauts plan to land
00:02:10 --> 00:02:12 initially scientists worried that the
00:02:12 --> 00:02:13 impact might have buried some of the
00:02:13 --> 00:02:16 moon's oldest rocks potentially dating
00:02:16 --> 00:02:18 back to its formation 4 billion years
00:02:18 --> 00:02:21 ago under debris however the team's
00:02:21 --> 00:02:23 analysis revealed some good news the
00:02:23 --> 00:02:25 impact appears to have thrown material
00:02:25 --> 00:02:28 primarily northward away from the
00:02:28 --> 00:02:30 planned exploration Zone
00:02:30 --> 00:02:32 this means that when astronauts arrive
00:02:32 --> 00:02:34 they should still have access to these
00:02:34 --> 00:02:37 ancient rocks offering an unprecedented
00:02:37 --> 00:02:39 opportunity to study the earliest
00:02:39 --> 00:02:41 chapter of the Earth Moon systems
00:02:41 --> 00:02:43 history if we could stand on the lunar
00:02:43 --> 00:02:46 surface today we'd be looking at what
00:02:46 --> 00:02:48 cring calls one of the most dramatic
00:02:48 --> 00:02:51 landscapes in our Cosmic neighborhood a
00:02:51 --> 00:02:54 testament to the moon's violent past and
00:02:54 --> 00:02:56 a window into the powerful forces that
00:02:56 --> 00:02:57 shaped our solar
00:02:58 --> 00:03:00 system and some good news today today
00:03:00 --> 00:03:02 blue origin has just achieved a
00:03:02 --> 00:03:04 significant milestone in space research
00:03:04 --> 00:03:06 with their latest new Shephard launch
00:03:06 --> 00:03:08 from their West Texas facility the
00:03:08 --> 00:03:11 mission designated NS 29 wasn't just
00:03:12 --> 00:03:14 another routine flight it marked the
00:03:14 --> 00:03:16 company's first successful attempt at
00:03:16 --> 00:03:18 simulating lunar gravity conditions in
00:03:18 --> 00:03:21 Space the launch saw new Shepard reach
00:03:21 --> 00:03:24 an impressive altitude of 105 kilom
00:03:24 --> 00:03:26 above sea level what made this flight
00:03:26 --> 00:03:28 unique was what happened after the
00:03:28 --> 00:03:31 capsule separated from its booster using
00:03:31 --> 00:03:33 reaction control thrusters the capsule
00:03:33 --> 00:03:36 was commanded to spin at 11 revolutions
00:03:36 --> 00:03:38 per minute creating lunar gravity
00:03:38 --> 00:03:41 conditions inside for approximately 2
00:03:41 --> 00:03:43 minutes this capability represents a
00:03:43 --> 00:03:45 major breakthrough for lunar research as
00:03:45 --> 00:03:47 Phil Joyce blue origin senior vice
00:03:47 --> 00:03:49 president for new Shepard explained it
00:03:49 --> 00:03:51 provides researchers with an invaluable
00:03:51 --> 00:03:53 opportunity to test lunar Technologies
00:03:53 --> 00:03:55 at a fraction of the cost of actual Moon
00:03:55 --> 00:03:58 missions scientists can now rapidly
00:03:58 --> 00:04:00 iterate and test their experience ments
00:04:00 --> 00:04:02 in lunar like conditions dramatically
00:04:02 --> 00:04:05 accelerating the development process the
00:04:05 --> 00:04:08 mission carried 29 different payloads
00:04:08 --> 00:04:10 with 17 of them provided by NASA through
00:04:10 --> 00:04:13 their flight opportunities program these
00:04:13 --> 00:04:15 experiments covered crucial areas for
00:04:15 --> 00:04:17 future lunar exploration including
00:04:17 --> 00:04:20 resource utilization dust mitigation
00:04:20 --> 00:04:22 Advanced habitation systems and various
00:04:22 --> 00:04:25 spacecraft Technologies one payload was
00:04:25 --> 00:04:27 even mounted on the exterior of the
00:04:27 --> 00:04:30 booster to test its response to space
00:04:30 --> 00:04:33 conditions while there was a minor issue
00:04:33 --> 00:04:34 with one of the three parachutes during
00:04:34 --> 00:04:37 descent the capsule landed safely as
00:04:37 --> 00:04:39 it's designed to operate with just two
00:04:39 --> 00:04:41 parachutes the successful completion of
00:04:42 --> 00:04:43 this Mission opens up exciting new
00:04:43 --> 00:04:45 possibilities for lunar research and
00:04:45 --> 00:04:48 development providing a crucial stepping
00:04:48 --> 00:04:49 stone toward sustainable lunar
00:04:49 --> 00:04:52 exploration and establishing a permanent
00:04:52 --> 00:04:54 human presence on the moon the
00:04:54 --> 00:04:56 achievement marks a significant
00:04:56 --> 00:04:58 advancement in our ability to prepare
00:04:58 --> 00:05:00 for future lunar missions offering
00:05:00 --> 00:05:02 researchers a reliable platform to test
00:05:03 --> 00:05:05 and refine their Technologies before
00:05:05 --> 00:05:07 deploying them on the moon
00:05:07 --> 00:05:10 itself next up today talk about a cosmic
00:05:10 --> 00:05:12 Bullseye the Hubble Space Telescope has
00:05:12 --> 00:05:14 captured something truly remarkable a
00:05:14 --> 00:05:17 Galaxy sporting not one not two but nine
00:05:17 --> 00:05:19 distinct ring-shaped ripples in its
00:05:19 --> 00:05:21 structure this extraordinary Cosmic
00:05:21 --> 00:05:24 object forly known as Lita 13
00:05:24 --> 00:05:27 13424 but nicknamed the bullseye Galaxy
00:05:27 --> 00:05:30 lies about 567 million light years away
00:05:31 --> 00:05:32 in the constellation
00:05:32 --> 00:05:35 Pisces this discovery was completely
00:05:35 --> 00:05:38 serendipitous Yale University researcher
00:05:38 --> 00:05:40 Imad Pasha spotted these unusual Rings
00:05:41 --> 00:05:42 while reviewing a groundbased Imaging
00:05:42 --> 00:05:44 survey and the finding immediately
00:05:44 --> 00:05:45 demanded closer
00:05:45 --> 00:05:47 investigation when the team took a
00:05:47 --> 00:05:49 closer look using Hubble's Advanced
00:05:49 --> 00:05:51 Camera for surveys they were able to
00:05:51 --> 00:05:53 spot eight distinct rings with a ninth
00:05:53 --> 00:05:55 ring identified using data from the kek
00:05:55 --> 00:05:58 observatory in Hawaii what caused this
00:05:58 --> 00:06:00 remarkable pattern
00:06:00 --> 00:06:03 well imagine throwing a rock into a pond
00:06:03 --> 00:06:04 that's essentially what happened here on
00:06:04 --> 00:06:07 a galactic scale a smaller blue dwarf
00:06:07 --> 00:06:09 Galaxy plunged right through the heart
00:06:09 --> 00:06:11 of the larger Galaxy about 50 million
00:06:11 --> 00:06:13 years ago creating these spectacular
00:06:13 --> 00:06:17 ripples in space even now though the
00:06:17 --> 00:06:19 galaxies are separated by 130 light
00:06:19 --> 00:06:22 years they remain connected by a thin
00:06:22 --> 00:06:25 trail of gas the bullseye Galaxy itself
00:06:25 --> 00:06:28 is quite a sizable Target spanning about
00:06:28 --> 00:06:30 250 Lighty years
00:06:30 --> 00:06:31 that's 2 and 1 half times wider than our
00:06:31 --> 00:06:34 Milky Way the impact event caused
00:06:34 --> 00:06:36 Galactic material to move both Inward
00:06:36 --> 00:06:38 and outward triggering multiple waves of
00:06:38 --> 00:06:41 star formation along these ripples
00:06:41 --> 00:06:43 creating exactly the pattern that
00:06:43 --> 00:06:44 theoretical models had
00:06:44 --> 00:06:46 predicted what makes this discovery
00:06:46 --> 00:06:48 particularly exciting is that it's the
00:06:48 --> 00:06:50 first time we've seen so many rings in a
00:06:50 --> 00:06:53 single Galaxy previous observations of
00:06:53 --> 00:06:55 similar Galactic collisions only showed
00:06:55 --> 00:06:58 two or three rings at most the timing of
00:06:58 --> 00:07:00 this observation is particularly
00:07:00 --> 00:07:02 fortunate as there's only a brief window
00:07:02 --> 00:07:04 after such an impact when a Galaxy would
00:07:04 --> 00:07:07 display so many distinct Rings this
00:07:07 --> 00:07:09 remarkable observation not only confirms
00:07:09 --> 00:07:11 long-standing theoretical predictions
00:07:11 --> 00:07:13 about Galactic collisions but also gives
00:07:13 --> 00:07:15 us a preview of what might happen when
00:07:15 --> 00:07:18 galaxies merge something our own Milky
00:07:18 --> 00:07:19 Way will experience billions of years
00:07:19 --> 00:07:21 from now when it collides with the
00:07:21 --> 00:07:23 Andromeda galaxy though that encounter
00:07:23 --> 00:07:26 is expected to be far more complex than
00:07:26 --> 00:07:28 this relatively straightforward Cosmic
00:07:28 --> 00:07:30 Bullseye shot
00:07:30 --> 00:07:32 in more moon news an exciting new
00:07:32 --> 00:07:34 mission is preparing to head to the Moon
00:07:34 --> 00:07:36 as SpaceX reades the launch of the lunar
00:07:36 --> 00:07:38 Trailblazer Orbiter scheduled for
00:07:38 --> 00:07:41 February 26th from NASA's Kennedy Space
00:07:41 --> 00:07:44 Center this university-led Mission has a
00:07:44 --> 00:07:46 fascinating objective to pinpoint the
00:07:46 --> 00:07:48 locations of ice and liquid water
00:07:48 --> 00:07:51 trapped within lunar rocks the
00:07:51 --> 00:07:54 spacecraft weighing about 440 lbs has
00:07:54 --> 00:07:56 been built by Lockheed Martin using
00:07:56 --> 00:07:59 their Innovative curio platform a new
00:07:59 --> 00:08:01 small at architecture designed to make
00:08:01 --> 00:08:02 deep space exploration more
00:08:02 --> 00:08:05 cost-efficient the probe comes equipped
00:08:05 --> 00:08:06 with two Deployable solar arrays and
00:08:07 --> 00:08:08 Carries two primary scientific
00:08:08 --> 00:08:11 instruments the highresolution volatiles
00:08:11 --> 00:08:13 and minerals Moon mapper from JPL and
00:08:13 --> 00:08:15 the lunar thermal mapper from the
00:08:15 --> 00:08:17 University of Oxford what makes this
00:08:18 --> 00:08:20 Mission particularly interesting is its
00:08:20 --> 00:08:22 planned observation strategy the lunar
00:08:22 --> 00:08:24 Trailblazer will peer into permanently
00:08:24 --> 00:08:26 shadowed regions of the Moon searching
00:08:26 --> 00:08:28 for micr cold traps smaller than a
00:08:28 --> 00:08:30 football field
00:08:30 --> 00:08:31 it will also collect measurements at
00:08:31 --> 00:08:34 various times of day over sunlet regions
00:08:34 --> 00:08:36 to understand how water signatures might
00:08:36 --> 00:08:38 change as surface temperatures fluctuate
00:08:38 --> 00:08:40 by hundreds of degrees during a lunar
00:08:40 --> 00:08:42 day following its launch aboard the
00:08:42 --> 00:08:45 Falcon 9 where it will share the ride
00:08:45 --> 00:08:46 with intuitive machines Athena lunar
00:08:46 --> 00:08:49 lander the spacecraft will take between
00:08:49 --> 00:08:52 four to 7 months to reach lunar orbit
00:08:52 --> 00:08:54 once there it's planed to operate for at
00:08:54 --> 00:08:57 least a year systematically mapping and
00:08:57 --> 00:09:00 studying the moon's water distribution
00:09:00 --> 00:09:02 this Mission represents an important
00:09:02 --> 00:09:04 step in understanding how water works on
00:09:04 --> 00:09:07 the moon knowledge that could prove
00:09:07 --> 00:09:09 crucial for future lunar exploration and
00:09:09 --> 00:09:11 potential human settlement after
00:09:11 --> 00:09:13 completing its scientific Mission the
00:09:13 --> 00:09:15 spacecraft will conclude its Journey
00:09:15 --> 00:09:16 with a planned impact on the lunar
00:09:16 --> 00:09:19 surface a process officially termed as
00:09:19 --> 00:09:22 surface disposal the lunar Trailblazer
00:09:22 --> 00:09:24 is part of NASA's small Innovative
00:09:24 --> 00:09:26 missions for Planetary Exploration
00:09:26 --> 00:09:28 program and in a unique educational
00:09:29 --> 00:09:29 component
00:09:29 --> 00:09:31 it will be operated by students from
00:09:31 --> 00:09:34 both Caltech and Pasadena City College
00:09:34 --> 00:09:36 at the Caltech based infrared processing
00:09:36 --> 00:09:37 and Analysis
00:09:37 --> 00:09:40 Center NASA's Europa Clipper Mission has
00:09:40 --> 00:09:42 hit an early Milestone on its ambitious
00:09:42 --> 00:09:44 journey to Jupiter's icy Moon Europa
00:09:44 --> 00:09:46 marking progress just 3 months after its
00:09:47 --> 00:09:49 launch from Kennedy Space Center while
00:09:49 --> 00:09:51 the spacecraft still has an incredible
00:09:51 --> 00:09:53 1.6 billion miles ahead of it before
00:09:53 --> 00:09:55 reaching Jupiter's orbit in 2030 it's
00:09:55 --> 00:09:57 already providing valuable data from its
00:09:57 --> 00:10:00 current position 53 million miles from
00:10:00 --> 00:10:03 Earth the mission team recently received
00:10:03 --> 00:10:05 the spacecraft's first images of deep
00:10:05 --> 00:10:07 space captured by its star tracker
00:10:07 --> 00:10:09 cameras these specialized imagers act
00:10:09 --> 00:10:11 like a Celestial Compass helping Mission
00:10:12 --> 00:10:13 controllers precisely determine the
00:10:13 --> 00:10:16 spacecraft's orientation crucial for
00:10:16 --> 00:10:17 keeping its communication antennas
00:10:17 --> 00:10:20 pointed toward Earth the captured
00:10:20 --> 00:10:22 Starfield shows tiny pin Pricks of light
00:10:22 --> 00:10:26 from Stars between 150 to 300 light
00:10:26 --> 00:10:28 years away including bright stars from
00:10:29 --> 00:10:30 the constellation
00:10:30 --> 00:10:32 corvis the spacecraft is currently
00:10:33 --> 00:10:35 racing through space at an astonishing
00:10:35 --> 00:10:38 17 m/s relative to the Sun and is
00:10:38 --> 00:10:40 approaching its first major navigational
00:10:40 --> 00:10:43 Milestone a Mars flyby scheduled for
00:10:43 --> 00:10:45 March 1st this carefully planned
00:10:45 --> 00:10:47 maneuver will use the red planet's
00:10:47 --> 00:10:49 gravity to give the spacecraft an
00:10:49 --> 00:10:51 additional boost on its long journey to
00:10:51 --> 00:10:54 the Jupiter system once it reaches its
00:10:54 --> 00:10:56 destination Europa Clipper will conduct
00:10:56 --> 00:10:59 49 close flybys of Europa using its
00:10:59 --> 00:11:01 Suite of nine scientific instruments to
00:11:01 --> 00:11:04 study the moon's composition geology and
00:11:04 --> 00:11:06 the Mysterious ocean that lies beneath
00:11:06 --> 00:11:07 its icy
00:11:07 --> 00:11:10 crust this comprehensive investigation
00:11:10 --> 00:11:11 will help scientists determine whether
00:11:11 --> 00:11:13 europa's subsurface ocean might Harbor
00:11:13 --> 00:11:16 conditions suitable for Life the
00:11:16 --> 00:11:17 successful checkout of the star trackers
00:11:18 --> 00:11:19 represents an important early step in
00:11:19 --> 00:11:22 ensuring all systems are functioning as
00:11:22 --> 00:11:24 intended after launch while the
00:11:24 --> 00:11:26 spacecraft's main science cameras remain
00:11:26 --> 00:11:28 safely behind their protective covers
00:11:28 --> 00:11:30 for at least the next 3 years these
00:11:30 --> 00:11:32 engineering Milestones are building
00:11:32 --> 00:11:34 confidence in the mission's ability to
00:11:34 --> 00:11:36 accomplish its ambitious scientific
00:11:36 --> 00:11:38 goals when it finally arrives at
00:11:38 --> 00:11:40 Jupiter's intriguing icy
00:11:40 --> 00:11:43 moon have you ever thought about this a
00:11:43 --> 00:11:45 fascinating new study is asking a
00:11:45 --> 00:11:48 compelling question if there are alien
00:11:48 --> 00:11:49 civilizations out there with technology
00:11:49 --> 00:11:52 similar to ours how far away could they
00:11:52 --> 00:11:54 detect signs of Earth's
00:11:54 --> 00:11:57 existence This research led by Sophia
00:11:57 --> 00:12:00 shake from The seti Institute takes a
00:12:00 --> 00:12:01 unique approach by examining our own
00:12:02 --> 00:12:03 technological footprint from an
00:12:03 --> 00:12:05 outsider's
00:12:05 --> 00:12:07 perspective instead of speculating about
00:12:07 --> 00:12:09 Advanced alien civilizations the team
00:12:09 --> 00:12:12 focused on what an alien civilization
00:12:12 --> 00:12:15 with Earth 2024 level technology could
00:12:15 --> 00:12:17 detect they analyzed various techno
00:12:18 --> 00:12:20 signatures were currently producing from
00:12:20 --> 00:12:22 Radio Transmissions to satellite signals
00:12:22 --> 00:12:24 and even city lights and Atmospheric
00:12:24 --> 00:12:26 pollution the results paint an
00:12:26 --> 00:12:28 interesting picture of our Cosmic
00:12:28 --> 00:12:30 visibility our most detectable signature
00:12:30 --> 00:12:33 comes from our planetary radar systems
00:12:33 --> 00:12:35 like the former arbo Observatory which
00:12:35 --> 00:12:38 could be spotted from up to 12 light
00:12:38 --> 00:12:40 years away that's roughly the distance
00:12:40 --> 00:12:42 to the tadpole nebula quite a
00:12:42 --> 00:12:44 considerable reach into our galaxy the
00:12:44 --> 00:12:46 next most visible signs would be signals
00:12:46 --> 00:12:48 from NASA's deep space Network
00:12:48 --> 00:12:51 detectable from about 100 light years
00:12:51 --> 00:12:53 away but most of our technological
00:12:53 --> 00:12:55 signatures including our LTE signals
00:12:55 --> 00:12:57 atmospheric pollution and Laser
00:12:57 --> 00:13:00 emissions would only be detectable from
00:13:00 --> 00:13:02 within about four light years
00:13:02 --> 00:13:03 approximately the distance to our
00:13:03 --> 00:13:07 nearest Stellar neighbor Proxima centor
00:13:07 --> 00:13:09 what's particularly intriguing is how
00:13:09 --> 00:13:10 these findings might inform our own
00:13:11 --> 00:13:13 search for extraterrestrial
00:13:13 --> 00:13:15 intelligence the research suggests that
00:13:15 --> 00:13:17 despite ongoing debates in the SEI
00:13:17 --> 00:13:20 Community focusing on radio waves
00:13:20 --> 00:13:22 remains our best bet for detecting other
00:13:22 --> 00:13:25 civilizations as they outperform other
00:13:25 --> 00:13:26 techno signatures by a factor of a
00:13:26 --> 00:13:29 thousand in terms of detection distance
00:13:29 --> 00:13:31 the study also raises thought-provoking
00:13:31 --> 00:13:33 questions about how we're presenting
00:13:33 --> 00:13:35 ourselves to the cosmos our
00:13:35 --> 00:13:37 technological signatures could tell
00:13:37 --> 00:13:38 potential observers quite a bit about
00:13:38 --> 00:13:40 our society from how we organize
00:13:41 --> 00:13:42 ourselves to our relationship with our
00:13:42 --> 00:13:45 environment it's a cosmic mirror that
00:13:45 --> 00:13:47 reflects not just our technological
00:13:47 --> 00:13:50 capabilities but also who we are as a
00:13:50 --> 00:13:52 civilization that brings us to the end
00:13:52 --> 00:13:54 of another fascinating episode of
00:13:54 --> 00:13:56 astronomy daily I'm Anna and I hope
00:13:56 --> 00:13:57 you've enjoyed exploring these
00:13:57 --> 00:13:59 incredible stories from across the
00:13:59 --> 00:14:01 cosmos with me today from ancient lunar
00:14:02 --> 00:14:04 Canyons to Rippling Galaxy collisions
00:14:04 --> 00:14:06 and from water hunting spacecraft to our
00:14:06 --> 00:14:08 own Cosmic detectability it's been quite
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00:14:46 --> 00:14:59 astronomy daily
00:14:59 --> 00:15:00 the all
00:15:01 --> 00:15:08 [Music]