Astronomy Daily - The Podcast: S03E212
Welcome to Astronomy Daily, your Daily source of space news and astronomical insights. I'm your host, Anna, and today we have an extraordinary lineup of stories that span the cosmos, from validating Einstein’s theories to SpaceX's whimsical passenger.
Highlights:
- Einstein's Theories Confirmed: Discover the groundbreaking study using the Dark Energy Spectroscopic Instrument in Arizona, which tracked nearly 6 million galaxies to confirm Einstein's theory of general relativity on cosmic scales. Uncover the intriguing findings about dark energy's potential dynamism and its implications for the universe's future.
- China's Space Station Progress : Explore the latest achievements of China's space program with the Tianzhou cargo missions. Learn about the recent successful docking of Tianzhou 8 with the Tiangong Space Station and the diverse scientific experiments it supports.
- Artificial Star Mission : Dive into George Mason University's ambitious $19.5 million NASA mission to launch an artificial star into orbit. Understand how this project aims to revolutionize telescope calibration and stellar brightness measurement, enhancing our grasp of the universe's expansion.
- Lunar Safety Innovation : Discover the Australian-developed distress alert system for lunar explorers, designed to ensure astronaut safety during NASA's Artemis missions. Learn about the technology's potential to improve emergency communications on Earth.
- SpaceX and Military Interest: Get insights into SpaceX's latest Starship test flight, which attracted attention from military leadership. Explore the potential military applications of Starship's rapid global transport capabilities and the lighthearted inclusion of a toy banana as a zero-gravity indicator.
- The Guitar Nebula : Marvel at the discovery of the Guitar Nebula, a cosmic structure captured by NASA's Chandra X-ray Observatory and Hubble Space Telescope. Learn about the pulsar at its core and how it creates this visually stunning and scientifically significant formation.
For more cosmic updates, visit our website at astronomydaily.io (https://www.astronomydaily.io) . Sign up for our free Daily newsletter to stay informed on all things space. Join our community on social media by searching for #AstroDailyPod on Facebook, X, YouTube, Tumblr, and TikTok . Share your thoughts and connect with fellow space enthusiasts.
Thank you for tuning in. This is Anna signing off. Until tomorrow, keep looking up and stay curious about the wonders above us.
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00:00:00 --> 00:00:02 hi everyone and welcome to astronomy
00:00:02 --> 00:00:04 daily your daily dose of space news and
00:00:04 --> 00:00:07 astronomical discoveries I'm Anna and
00:00:07 --> 00:00:09 we've got an incredible lineup of
00:00:09 --> 00:00:11 stories for you today from
00:00:11 --> 00:00:12 groundbreaking confirmations of
00:00:12 --> 00:00:14 Einstein's theories to spacex's latest
00:00:14 --> 00:00:17 adventure with an unusual passenger
00:00:17 --> 00:00:19 we're covering the full spectrum of
00:00:19 --> 00:00:21 space exploration and Discovery today
00:00:21 --> 00:00:23 we'll Journey from the largest scales of
00:00:23 --> 00:00:26 our universe where scientists have been
00:00:26 --> 00:00:27 testing Einstein's predictions about
00:00:27 --> 00:00:29 gravity all the way to our Cosmic
00:00:30 --> 00:00:32 backyard where China's space station has
00:00:32 --> 00:00:35 been bustling with activity we'll also
00:00:35 --> 00:00:36 explore some fascinating new
00:00:36 --> 00:00:38 developments in space technology
00:00:38 --> 00:00:40 including an artificial star project and
00:00:40 --> 00:00:42 a potentially life-saving emergency
00:00:42 --> 00:00:44 system for future lunar
00:00:44 --> 00:00:46 Explorers so strap in and get ready for
00:00:46 --> 00:00:48 another exciting Journey Through the
00:00:48 --> 00:00:51 latest developments in space science and
00:00:51 --> 00:00:54 exploration first up today in a
00:00:54 --> 00:00:56 remarkable validation of one of physics
00:00:56 --> 00:00:58 most fundamental theories scientists
00:00:58 --> 00:01:00 have just completed the most precise
00:01:00 --> 00:01:02 test ever of how gravity behaves at
00:01:02 --> 00:01:04 Cosmic scales using observations from
00:01:05 --> 00:01:06 the Dark Energy spectroscopic instrument
00:01:06 --> 00:01:09 in Arizona researchers tracked nearly 6
00:01:09 --> 00:01:11 million galaxies and their luminous
00:01:11 --> 00:01:14 cores over a period spanning 11 billion
00:01:14 --> 00:01:17 years that's about 80% of our universe's
00:01:17 --> 00:01:19 entire history what they found would
00:01:19 --> 00:01:22 have made Einstein proud the way gravity
00:01:22 --> 00:01:24 shapes our Cosmos at the largest scales
00:01:24 --> 00:01:26 matches exactly what Einstein predicted
00:01:26 --> 00:01:29 in his 1915 theory of general relativity
00:01:29 --> 00:01:31 this Theory which revolutionized our
00:01:31 --> 00:01:33 understanding of the universe by linking
00:01:33 --> 00:01:36 space time and gravity continues to hold
00:01:36 --> 00:01:38 true even when tested at the most
00:01:38 --> 00:01:40 extreme Cosmic scales
00:01:40 --> 00:01:42 imaginable the study wasn't just about
00:01:42 --> 00:01:44 confirming Einstein's work though it was
00:01:44 --> 00:01:46 part of a broader investigation into
00:01:46 --> 00:01:48 dark energy that mysterious Force
00:01:48 --> 00:01:50 causing our universe's expansion to
00:01:50 --> 00:01:52 accelerate interestingly while gravity
00:01:53 --> 00:01:54 behaves as Einstein predicted the
00:01:54 --> 00:01:56 researchers found evidence suggesting
00:01:56 --> 00:01:58 that dark energy might be more Dynamic
00:01:58 --> 00:02:00 than previously thought potentially
00:02:00 --> 00:02:02 weakening over time rather than
00:02:02 --> 00:02:05 remaining constant this discovery could
00:02:05 --> 00:02:07 have profound implications for our
00:02:07 --> 00:02:08 understanding of the universe's future
00:02:09 --> 00:02:11 Evolution if dark energy is indeed
00:02:11 --> 00:02:13 changing it means the universe's
00:02:13 --> 00:02:15 expansion might not continue
00:02:15 --> 00:02:17 accelerating forever as once thought
00:02:17 --> 00:02:19 it's worth noting that dark energy makes
00:02:19 --> 00:02:22 up about 68% of our universe's contents
00:02:22 --> 00:02:25 while Dark Matter accounts for 27%
00:02:25 --> 00:02:27 leaving just 5% for all the ordinary
00:02:27 --> 00:02:30 matter we can see and interact with
00:02:30 --> 00:02:31 including everything from stars and
00:02:31 --> 00:02:34 planets to people and
00:02:34 --> 00:02:36 popcorn China's Space Program continues
00:02:36 --> 00:02:38 to achieve impressive Milestones with
00:02:38 --> 00:02:41 its tanjo cargo missions supporting the
00:02:41 --> 00:02:44 tiangong space station the tanjo 7
00:02:44 --> 00:02:46 spacecraft recently concluded its
00:02:46 --> 00:02:48 Mission with a controlled re-entry into
00:02:48 --> 00:02:50 Earth's atmosphere with most of the
00:02:50 --> 00:02:52 vehicle disintegrating as planned and
00:02:52 --> 00:02:54 only minor debris Landing in designated
00:02:54 --> 00:02:57 Seas zones before its dramatic finale
00:02:57 --> 00:03:00 tanjo 7 completed one last assignment
00:03:00 --> 00:03:02 deploying a small educational satellite
00:03:02 --> 00:03:04 into orbit during its weeklong solo
00:03:04 --> 00:03:06 mission after separating from the space
00:03:06 --> 00:03:08 station the spacecraft had initially
00:03:09 --> 00:03:10 launched from the W Chung space launch
00:03:10 --> 00:03:13 Center back in January as one Mission
00:03:13 --> 00:03:16 ended another began with Tano 8
00:03:16 --> 00:03:18 launching from the same Spaceport and
00:03:18 --> 00:03:19 successfully docking with tiang gong's
00:03:19 --> 00:03:22 tan core module after just a 3-hour
00:03:22 --> 00:03:25 flight this marks the 15th spacecraft to
00:03:25 --> 00:03:27 connect with the station which orbits
00:03:27 --> 00:03:30 approximately 400 km above Earth
00:03:30 --> 00:03:32 the new cargo ship delivered an
00:03:32 --> 00:03:33 impressive payload of supplies for the
00:03:33 --> 00:03:36 sheno 1th astronauts who arrived at the
00:03:36 --> 00:03:39 station in October this includes enough
00:03:39 --> 00:03:40 Provisions to sustain a three-person
00:03:40 --> 00:03:43 crew for 9 months along with over 80
00:03:43 --> 00:03:46 scientific packages weighing a combined
00:03:46 --> 00:03:50 458 kg supporting 36 different onboard
00:03:50 --> 00:03:52 experiments these experiments Span in
00:03:52 --> 00:03:54 fascinating range of research areas from
00:03:54 --> 00:03:57 space life sciences and biotechnology to
00:03:57 --> 00:04:00 Material Science and fluid physics in
00:04:00 --> 00:04:01 microgravity one particularly
00:04:01 --> 00:04:03 interesting study will examine how subm
00:04:04 --> 00:04:06 magnetic microgravity affects fruit
00:04:06 --> 00:04:08 flyes genetic and behavioral traits the
00:04:08 --> 00:04:11 first experiment of its kind the crew
00:04:11 --> 00:04:12 has already begun the process of
00:04:12 --> 00:04:14 unpacking and organizing these vital
00:04:14 --> 00:04:16 supplies and research
00:04:16 --> 00:04:19 materials next up in a groundbreaking
00:04:19 --> 00:04:21 development for astronomical research
00:04:21 --> 00:04:24 George Mason University will lead a 19.5
00:04:24 --> 00:04:26 million NASA mission to launch an
00:04:26 --> 00:04:29 artificial star into Earth's orbit this
00:04:29 --> 00:04:31 innovative project known as the landal
00:04:31 --> 00:04:34 NASA space mission aims to revolutionize
00:04:34 --> 00:04:36 how we calibrate telescopes and measure
00:04:36 --> 00:04:38 Stellar brightness across the cosmos the
00:04:38 --> 00:04:41 artificial star will be positioned
00:04:41 --> 00:04:45 22236 Mi above Earth far enough to
00:04:45 --> 00:04:47 appear as a genuine star to groundbased
00:04:47 --> 00:04:49 telescopes equipped with eight Precision
00:04:49 --> 00:04:52 lasers this Celestial calibration tool
00:04:52 --> 00:04:53 will enable scientists to make
00:04:53 --> 00:04:56 unprecedented improvements in measuring
00:04:56 --> 00:04:58 everything from nearby stars to distant
00:04:58 --> 00:05:02 supernova explosions in far off
00:05:02 --> 00:05:04 galaxies what makes this Mission
00:05:04 --> 00:05:06 particularly significant is its
00:05:06 --> 00:05:08 potential impact on our understanding of
00:05:08 --> 00:05:10 the universe's
00:05:10 --> 00:05:12 expansion while we know the universe is
00:05:12 --> 00:05:14 expanding getting precise measurements
00:05:14 --> 00:05:17 of this expansion has been challenging
00:05:17 --> 00:05:18 the artificial star will allow
00:05:18 --> 00:05:20 scientists to achieve an remarkable
00:05:20 --> 00:05:22 accuracy of
00:05:22 --> 00:05:25 0.25% in measuring Stellar brightness a
00:05:25 --> 00:05:26 level of precision that has never been
00:05:26 --> 00:05:29 possible before the satellite won't be
00:05:29 --> 00:05:31 visible to the naked eye but will be
00:05:31 --> 00:05:34 observable through personal telescopes
00:05:34 --> 00:05:36 it will maintain a geosynchronous orbit
00:05:36 --> 00:05:38 keeping it positioned over the United
00:05:38 --> 00:05:40 States during its first year of
00:05:40 --> 00:05:42 operation the mission involves
00:05:42 --> 00:05:43 collaboration between multiple
00:05:43 --> 00:05:45 institutions including the National
00:05:45 --> 00:05:48 Institute of Standards and Technology
00:05:48 --> 00:05:50 NASA and several universities with
00:05:50 --> 00:05:52 Mission Control based at George Mason's
00:05:52 --> 00:05:55 Fairfax campus this infrastructure
00:05:55 --> 00:05:57 Mission represents a transformative
00:05:57 --> 00:05:58 approach to solving one of astronomy's
00:05:58 --> 00:06:00 fundamental challenges es accurate
00:06:01 --> 00:06:03 Stellar measurement by providing a known
00:06:03 --> 00:06:05 reference point in the sky it will help
00:06:05 --> 00:06:07 scientists refine our understanding of
00:06:07 --> 00:06:10 Stellar Evolution identify potentially
00:06:10 --> 00:06:12 habitable exoplanets and unlock new
00:06:12 --> 00:06:15 insights into the mysteries of dark
00:06:15 --> 00:06:18 energy moving on now to astronaut safety
00:06:18 --> 00:06:19 when it comes to exploring the moon
00:06:19 --> 00:06:21 safety is Paramount and Australian
00:06:21 --> 00:06:23 researchers have developed an Innovative
00:06:23 --> 00:06:25 solution to address one of the most
00:06:25 --> 00:06:26 critical challenges faced by lunar
00:06:26 --> 00:06:29 explorers they've created a new distress
00:06:29 --> 00:06:31 alert system specifically designed for
00:06:31 --> 00:06:34 astronauts on lunar missions adapting
00:06:34 --> 00:06:37 The Proven cpass Sarat technology that's
00:06:37 --> 00:06:39 been saving lives on Earth for decades
00:06:39 --> 00:06:41 the system represents a significant
00:06:41 --> 00:06:44 advancement for NASA's Artemis program
00:06:44 --> 00:06:46 which aims to establish a sustained
00:06:46 --> 00:06:48 human presence on the moon with
00:06:49 --> 00:06:50 astronauts venturing into isolated
00:06:50 --> 00:06:53 regions like the lunar South Pole having
00:06:53 --> 00:06:55 reliable emergency communication could
00:06:55 --> 00:06:56 mean the difference between life and
00:06:56 --> 00:06:59 death especially considering that any
00:06:59 --> 00:07:01 rescue Mission could take days or even
00:07:01 --> 00:07:03 weeks to reach them the technology
00:07:03 --> 00:07:05 relies on low power emergency beacons
00:07:06 --> 00:07:07 that astronauts can quickly activate
00:07:07 --> 00:07:10 with minimal setup these beacons will
00:07:10 --> 00:07:12 communicate through a planned network of
00:07:12 --> 00:07:14 lunar satellites enabling continuous
00:07:14 --> 00:07:17 communication for up to 10 hours even in
00:07:17 --> 00:07:19 challenging terrain like mountains and
00:07:19 --> 00:07:22 deep craters the system is designed to
00:07:22 --> 00:07:23 be lighter and more reliable than
00:07:23 --> 00:07:26 existing Solutions with an extended
00:07:26 --> 00:07:27 battery life crucial for lunar
00:07:28 --> 00:07:30 operations safety from from space the
00:07:30 --> 00:07:32 group behind this development has
00:07:32 --> 00:07:34 received $100 in Government funding
00:07:34 --> 00:07:37 to advance their lunar search and rescue
00:07:37 --> 00:07:39 initiatives if successful this
00:07:39 --> 00:07:41 Australian contribution to the Artemis
00:07:41 --> 00:07:43 program could not only Safeguard future
00:07:43 --> 00:07:46 lunar explorers but also lead to
00:07:46 --> 00:07:48 improvements in emergency communications
00:07:48 --> 00:07:50 back on Earth particularly in remote
00:07:50 --> 00:07:52 areas where traditional communication
00:07:52 --> 00:07:54 methods are
00:07:54 --> 00:07:56 unreliable spacex's latest Starship test
00:07:56 --> 00:07:58 flight drew some notable attention from
00:07:58 --> 00:07:59 military leadership
00:07:59 --> 00:08:01 with space force chief of space
00:08:01 --> 00:08:03 operations General chance Saltzman
00:08:03 --> 00:08:04 making a special visit to spacex's
00:08:04 --> 00:08:07 Starbase facility in Bach Chica the
00:08:07 --> 00:08:09 general spent two days reviewing the
00:08:09 --> 00:08:11 program and watched the launch alongside
00:08:11 --> 00:08:14 SpaceX founder Elon Musk and other
00:08:14 --> 00:08:16 dignitaries while the space force hasn't
00:08:16 --> 00:08:18 made any formal commitments to using
00:08:18 --> 00:08:21 Starship their interest is clear the
00:08:21 --> 00:08:23 military already relies heavily on Space
00:08:23 --> 00:08:25 X's Falcon rockets for National Security
00:08:25 --> 00:08:28 launches and starship's massive payload
00:08:28 --> 00:08:30 capacity could open up new possibilities
00:08:30 --> 00:08:33 for military space operations one
00:08:33 --> 00:08:35 intriguing concept under consideration
00:08:35 --> 00:08:37 is using Starship as a rapid Global
00:08:37 --> 00:08:39 transport system potentially delivering
00:08:39 --> 00:08:41 cargo and Personnel anywhere on Earth in
00:08:41 --> 00:08:44 under an hour the launch itself marked
00:08:44 --> 00:08:47 another mil stone for SpaceX featuring
00:08:47 --> 00:08:49 an unusual passenger a banana serving as
00:08:49 --> 00:08:52 the spacecraft's zero gravity indicator
00:08:52 --> 00:08:54 this 8in toy banana complete with
00:08:54 --> 00:08:56 Mission patches and four scale printed
00:08:56 --> 00:08:59 on its side became the first physical
00:08:59 --> 00:09:01 payload load to fly aboard Starship one
00:09:01 --> 00:09:04 for the history books SpaceX even
00:09:04 --> 00:09:05 decorated the massive spacecraft's
00:09:05 --> 00:09:08 exterior with four foot tall stickers of
00:09:08 --> 00:09:11 pixelated cartoon bananas playing into
00:09:11 --> 00:09:13 the mission's light-hearted theme the
00:09:13 --> 00:09:15 test flight achieved all its main
00:09:15 --> 00:09:17 objectives including successfully
00:09:17 --> 00:09:20 relighting starship's engines in space a
00:09:20 --> 00:09:22 crucial capability needed for future
00:09:22 --> 00:09:23 orbital
00:09:23 --> 00:09:25 missions the super heavy booster made a
00:09:25 --> 00:09:27 soft water landing in the Gulf of Mexico
00:09:27 --> 00:09:29 while Starships splashed down in the
00:09:29 --> 00:09:31 Indian Ocean about 65 minutes after
00:09:31 --> 00:09:33 launch marking another step forward in
00:09:33 --> 00:09:36 the development of this revolutionary
00:09:36 --> 00:09:38 spacecraft in an extraordinary
00:09:38 --> 00:09:41 astronomical Discovery NASA's Chandra
00:09:41 --> 00:09:43 x-ray Observatory and Hubble Space
00:09:43 --> 00:09:45 Telescope have revealed a cosmic
00:09:45 --> 00:09:47 structure that's been aptly nicknamed
00:09:47 --> 00:09:49 the guitar nebula this remarkable
00:09:50 --> 00:09:51 formation features a distinctive
00:09:51 --> 00:09:53 guitar-shaped nebula with what appears
00:09:53 --> 00:09:55 to be a flame like filament extending
00:09:55 --> 00:09:58 from its tip at the heart of this Cosmic
00:09:58 --> 00:10:02 guitar is a pulsar a rapidly rotating
00:10:02 --> 00:10:04 neutron star Left Behind after the
00:10:04 --> 00:10:06 collapse of a massive Star as the
00:10:06 --> 00:10:09 Stellar Remnant races through space it's
00:10:09 --> 00:10:10 creating an impressive display by
00:10:10 --> 00:10:13 ejecting a stream of particles and x-ray
00:10:13 --> 00:10:14 light that stretches an incredible two
00:10:14 --> 00:10:17 Lighty years or roughly 12 trillion
00:10:17 --> 00:10:19 miles the guitar shape itself forms from
00:10:19 --> 00:10:21 bubbles of particles blown out by the
00:10:21 --> 00:10:24 pulser steady wind as it moves through
00:10:24 --> 00:10:26 space what makes this structure
00:10:26 --> 00:10:27 particularly fascinating is how it's
00:10:27 --> 00:10:29 producing both matter and anti matter
00:10:29 --> 00:10:31 particles essentially reversing
00:10:31 --> 00:10:34 Einstein's famous elc2 equation by
00:10:34 --> 00:10:36 converting energy back into Mass
00:10:36 --> 00:10:38 scientists have been tracking this
00:10:38 --> 00:10:40 Celestial performance over two decades
00:10:40 --> 00:10:42 combining observations from both
00:10:42 --> 00:10:44 telescopes to create a detailed movie of
00:10:44 --> 00:10:47 its Evolution the Chandra data shows the
00:10:47 --> 00:10:49 energetic particles spiraling along
00:10:49 --> 00:10:51 magnetic field lines while Hubble
00:10:51 --> 00:10:53 captures the broader structures movement
00:10:53 --> 00:10:55 through space as the pulser collides
00:10:55 --> 00:10:58 with denser regions of gas the most
00:10:58 --> 00:11:00 energetic particles escape and create
00:11:00 --> 00:11:03 the remarkable x-ray filament much like
00:11:03 --> 00:11:05 a cosmic blowtorch shooting from the tip
00:11:05 --> 00:11:07 of this Celestial instrument the
00:11:07 --> 00:11:09 discovery isn't just visually
00:11:09 --> 00:11:11 spectacular it's helping astronomers
00:11:11 --> 00:11:13 understand how particles travel through
00:11:13 --> 00:11:15 Interstellar space and providing new
00:11:15 --> 00:11:17 insights into how pulsars interact with
00:11:17 --> 00:11:19 their surrounding
00:11:19 --> 00:11:21 environment and that's it for this
00:11:21 --> 00:11:23 episode thanks for joining me Anna on
00:11:23 --> 00:11:26 today's Journey Through the cosmos from
00:11:26 --> 00:11:27 groundbreaking confirmations of
00:11:27 --> 00:11:29 Einstein's theories to guitar shaped
00:11:29 --> 00:11:31 nebulas there's always something
00:11:31 --> 00:11:33 fascinating happening in our universe if
00:11:33 --> 00:11:35 you want to stay up to dat with all the
00:11:35 --> 00:11:37 latest space and astronomy news head
00:11:37 --> 00:11:40 over to our website at astronomy
00:11:40 --> 00:11:43 daily. there you'll find our constantly
00:11:43 --> 00:11:45 updating Newsfeed all our past podc
00:11:45 --> 00:11:47 episodes and you can sign up for our
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00:12:04 --> 00:12:06 enthusiasts until tomorrow keep looking
00:12:06 --> 00:12:08 up and stay curious about the Wonders
00:12:08 --> 00:12:14 above us
00:12:14 --> 00:12:28 [Music]