SpaceTime: Your Guide to Space & Astronomy

Sponsor Details:This episode is brought to you by NordVPN - the official VPN service of SpaceTime. Protect your online privacy with the same service we trust. For a special SpaceTime deal, visit nordvpn.com/stuartgary or use the coupon code Stuart Gary at checkout.In this episode of SpaceTime, we uncover fascinating new insights into the Moon's hidden mantle, the dynamics of stellar nurseries, and the latest lunar lander mishap.A New Window into the Moon's Hidden MantleRecent studies of unique green glass beads retrieved by China's Chang' E5 mission suggest evidence of a significant asteroid impact on the Moon. These beads, with their unusually high magnesium content, may originate from the Moon's mantle, offering scientists their first direct glimpse into this elusive layer. We discuss the implications of this discovery for understanding lunar geology and the history of our celestial neighbor.Unusual Stellar Nursery Discovered Near the Milky Way's CenterNew findings indicate that star formation rates near the galactic center of the Milky Way are unexpectedly low, despite the high density of stellar material. Utilizing data from NASA's retired SOFIA observatory, researchers have identified that these regions may produce only one generation of stars, challenging traditional models of stellar nurseries. We explore what these revelations mean for our understanding of galactic dynamics and star formation processes.Another Lunar Lander Crashes on the MoonThe Japanese I Space lunar lander, Resilience, has tragically crashed during its landing attempt on the Moon, marking another setback in the race for lunar exploration. We delve into the details surrounding the mission's failure and the ongoing investigations aimed at uncovering the cause of the crash. This incident highlights the challenges faced by commercial space missions as they strive to achieve successful lunar landings.www.spacetimewithstuartgary.com✍️ Episode ReferencesScience Advanceshttps://www.science.org/journal/sciadvAstrophysical Journalhttps://iopscience.iop.org/journal/0004-637XBecome a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.00:00 This is Space Time Series 28, Episode 72 for broadcast on 16 June 202501:00 A new window into the Moon's hidden mantle12:15 Unusual stellar nursery discovered near the Milky Way's center22:30 Another lunar lander crashes on the Moon30:00 Science report: New insights into the mystery of why cats purr

Sponsor Details:This epiosode is broght to you by NordVPN...the official VPN service of SpaceTime. Get online security at a special SpaceTime price. Details at www.nordvpn.com/stuartgaryor use the code STUARTGARY at checkout.In this episode of SpaceTime, we explore groundbreaking discoveries and significant events unfolding in our universe.Galactic Collision Course: Two Massive Galaxy Clusters Set for Round TwoAstronomers have observed a rare cosmic event as two massive galaxy clusters, previously collided, are now on a trajectory for another encounter. Located 2.8 billion light-years away, the clusters—designated PSE2G 181.06.48.47—exhibit fascinating structures and shock fronts indicative of their impending collision. We delve into the implications of this rare event and what it reveals about the dynamics of galaxy clusters and dark matter.NASA's Psyche Mission Switches to Backup SystemsNASA has been compelled to switch to a backup fuel system on its Psyche spacecraft after a drop in fuel pressure was detected in the main propulsion system. We discuss the technical challenges faced by the mission team, the significance of the asteroid Psyche, and what this means for the spacecraft's journey to explore this intriguing metallic asteroid, scheduled for arrival in 2029.Discovery of a New Atomic NucleusFor the first time in over three decades, scientists have measured the heaviest nucleus decaying through proton emission. This discovery, involving the lightest known isotope of astatine-188, sheds light on the rare form of radioactive decay and the intricate properties of exotic nuclei. We explore the experimental techniques used and the theoretical implications of this groundbreaking finding.www.spacetimewithstuartgary.com✍️ Episode ReferencesAstrophysical Journalhttps://iopscience.iop.org/journal/0004-637XNASA Psyche Missionhttps://www.nasa.gov/psycheBecome a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.00:00 This is Space Time Series 28, Episode 71 for broadcast on 13 June 202501:00 Galactic collision course: Two massive galaxy clusters set for round two12:15 NASA's Psyche mission switches to backup systems22:30 Discovery of a new atomic nucleus30:00 Science report: Unprecedented ocean warming in the South Pacific

In this episode of SpaceTime, we delve into the cosmos to uncover extraordinary cosmic phenomena, groundbreaking Mars exploration, and innovative asteroid detection technology.The Most Powerful Cosmic Explosions Since the Big BangAstronomers have identified a new class of cosmic events known as extreme nuclear transients (ENTs), which are the most powerful explosions observed since the Big Bang. These events occur when supermassive black holes tear apart stars over three times the mass of our sun, releasing energy that surpasses even the brightest supernovae. We explore the implications of these findings, including how these luminous phenomena can provide insights into black hole growth and the early universe.NASA's Perseverance Rover Takes a Bite of Ancient Martian RockNASA's Perseverance Rover has sampled a potentially ancient rock on Mars known as Crocodilen, located on the Jezero Crater Rim. This area offers vital clues about the planet's watery past and the potential for past life. We discuss the rover's mission, its new sampling strategy, and the significance of the clay minerals found in the region, which could preserve organic compounds.First Light for Europe's New Killer Asteroid HunterThe European Space Agency's FlyEye telescope has achieved its first light, marking a new era in the search for near-Earth asteroids that could threaten our planet. Designed to capture a vast region of the sky simultaneously, FlyEye will operate autonomously to detect and track these celestial hazards. We delve into how this innovative technology will enhance our planetary defense efforts and the role it will play in monitoring potential threats.www.spacetimewithstuartgary.com✍️ Episode ReferencesScience Advanceshttps://www.science.org/journal/sciadvNaturehttps://www.nature.com/nature/Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.00:00 This is Space Time Series 28, Episode 70 for broadcast on 11 June 202501:00 The most powerful cosmic explosions since the Big Bang12:15 NASA's Perseverance Rover takes a bite of ancient Martian rock22:30 First light for Europe's new killer asteroid hunter30:00 Science report: Global drought severity increases since 1981

Sponsor Details:This episode is brought to you with the support of NordVPN - SpaceTimes official VPN service. When it comes to your online privacy, use the one we use and help support the show. To claim your special SpaceTime bonus deal, visit nordvpn.com/stuartgary  or use  the coupon code STUARTGARY at checkout.In this episode of SpaceTime, we delve into groundbreaking revelations that challenge our understanding of cosmic events and planetary formation.New Insights on the Milky Way and Andromeda CollisionRecent studies utilizing data from NASA's Hubble Space Telescope and the European Space Agency's Gaia spacecraft cast doubt on the long-anticipated collision between our Milky Way and the Andromeda Galaxy. New simulations indicate only a 2% probability of a merger occurring within the next 3.7 to 5 billion years, suggesting that both galaxies may continue to evolve largely unperturbed for a much longer period. We explore the implications of these findings and the variables that have altered previous predictions about our galactic future.Understanding Seismic Wave Acceleration in Earth's D LayerA fascinating new study sheds light on the behavior of seismic waves deep within the Earth. Researchers have discovered that the unique crystal structure of minerals in the D layer, located near the core-mantle boundary, influences the acceleration of seismic waves. This breakthrough not only clarifies the mystery behind seismic wave behavior but also provides insights into the dynamics at play in the Earth's depths.Discovery of Embryonic Exoplanets Using Advanced TechniquesAstronomers have unveiled a new technique that has successfully identified five new embryonic exoplanets, offering a glimpse into their early formation stages. Utilizing the ALMA radio telescope, researchers can peer through dense protoplanetary disks to detect these young planets, which are forming rapidly in dynamic environments. This revolutionary method opens new avenues for understanding planetary evolution and the processes that govern the birth of new worlds.www.spacetimewithstuartgary.com✍️ Episode ReferencesNature Astronomyhttps://www.nature.com/natureastronomy/Communications Earth and Environmenthttps://www.nature.com/commsenv/Astrophysical Journal Lettershttps://iopscience.iop.org/journal/0004-637XBecome a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.00:00 This is Space Time Series 28, Episode 69 for broadcast on 9 June 202501:00 New insights on the Milky Way and Andromeda collision12:15 Understanding seismic wave acceleration in Earth's D layer22:30 Discovery of embryonic exoplanets using advanced techniques30:00 Science report: AI systems refusing to turn off

Sponsor Details:This episode is brought to you with the support of Insta360 - the leaders in 360-degree video technology. To explore their innovative range and claim your special SpaceTime bonus, visit store.insta360.com and use the coupon code SpaceTime at checkout.In this episode of SpaceTime, we uncover exciting new research challenging our understanding of dark matter, reveal hidden treasures beneath the Earth's surface, and explore the potential for life on Titan, Saturn's enigmatic moon.Modified Newtonian Dynamics: A Dark Matter AlternativeRecent studies suggest that modified Newtonian dynamics (MOND) may serve as a viable alternative to the elusive dark matter hypothesis. This theory, proposed by physicist Mordecai Milgrom, modifies Newton's laws to explain the gravitational behavior observed in galaxies without relying on dark matter. We delve into the latest findings that support MOND, including a novel method for measuring gravity in wide binary star systems, which indicates that gravity may actually be stronger than Newton's predictions under certain conditions.Earth's Hidden Gold ReservesA groundbreaking study reveals that Earth's core may contain vast reserves of gold and other precious metals, far beyond what is accessible on the surface. Researchers discovered traces of ruthenium in volcanic rocks from Hawaii, suggesting that these metals originated from the core and are leaking into the mantle. This research opens new avenues for understanding Earth's internal dynamics and the movement of materials from the core to the surface.Searching for Life's Chemistry on TitanNASA's upcoming Dragonfly mission aims to investigate the intriguing chemistry of life on Titan, Saturn's largest moon. With its organic-rich environment and unique geological features, Titan presents an opportunity to study prebiotic chemistry in a way that Earth cannot. We explore how Dragonfly will analyze the moon's surface and atmosphere to uncover clues about the processes that may have led to the emergence of life, potentially reshaping our understanding of habitability in the universe.www.spacetimewithstuartgary.com✍️ Episode ReferencesAstrophysical Journalhttps://iopscience.iop.org/journal/0004-637XNaturehttps://www.nature.com/nature/Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.00:00 This is Space Time Series 28, Episode 68 for broadcast on 6 June 202501:00 Modified Newtonian dynamics as an alternative to dark matter12:15 Earth's hidden gold reserves22:30 Searching for life's chemistry on Titan30:00 Science report: Ancient tool-making from whale bones and quantum computing breakthroughs

Sponsor Details:Incogni: When your data privacy matters, you need Incogni. To get your special SpaceTime deal and bonuses, visit www.incogni.com/stuartgary and let them do all the heavy lifting for youInsta360This episode is brought to you with the support of Insta360 - the innovators in 360-degree camera technology. Capture your adventures with the Insta360 X5, designed for extreme conditions. To claim a free invisible selfie stick with your purchase, visit store.insta360.com and use the promo code SpaceTime!In this episode of SpaceTime, we explore the latest developments in space exploration, lunar geology, and solar phenomena.SpaceX's Fiery Ninth Starship Test FlightThe latest test flight of SpaceX's Starship ended dramatically as both the orbiter and the booster were destroyed during reentry. Despite the fiery conclusion, SpaceX officials noted that the test was designed to push the limits of the spacecraft. The flight featured numerous milestones, including a successful hot staging and the first reflight of a booster. However, issues arose during the landing burn, resulting in a spectacular explosion. We discuss the implications of this test and what it means for future missions, including NASA's Artemis 3.Lunar Rocks and Their Magnetic MysteryA new study proposes that a significant asteroid impact may explain the presence of highly magnetic rocks on the Moon. Researchers suggest that a brief amplification of the Moon's weak magnetic field, caused by a large plasma-generated impact event, could account for the magnetism observed in some lunar samples. This hypothesis sheds light on the Moon's geological history and its magnetic properties, particularly in regions near the lunar south pole, where future missions are planned.Revealing the Sun's CoronaAstronomers have captured unprecedented details of the Sun's corona using a new adaptive optics system. This groundbreaking technology has allowed scientists to produce the clearest images of the corona yet, enhancing our understanding of coronal heating and solar eruptions. The new observations reveal dynamic features and turbulent flows within the corona, providing insights into the mechanisms driving space weather and its effects on Earth.www.spacetimewithstuartgary.com✍️ Episode ReferencesNature Astronomyhttps://www.nature.com/natureastronomy/Science Advanceshttps://www.science.org/journal/sciadvBecome a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.00:00 This is Space Time Series 28, Episode 67 for broadcast on 4 June 202501:00 SpaceX's ninth Starship test flight12:15 Lunar rocks and their magnetic mystery22:30 Revealing the Sun's corona30:00 Science report: New methods for green hydrogen production

Sponsor Details:This episode is brought to you with the support of Insta360 - the pioneers in 360-degree video technology. To explore their innovative range and claim your special offer, visit store.insta360.com and use the coupon code SpaceTime at checkout.In this episode of SpaceTime, we tackle some of the universe's most pressing mysteries, including new insights into the Hubble constant, the surprising geology of Venus, and the building blocks of stellar formation.Resolving the Hubble Constant DebateNew data from the James Webb Space Telescope may have finally reconciled the long-standing discrepancy in the measurement of the Hubble constant, the rate at which the universe expands. For years, scientists have grappled with differing values derived from cosmic microwave background radiation and supernova observations. Lead author Wendy Friedman discusses how recent findings suggest that the standard model of cosmology holds up, with the Hubble constant now estimated at 70.4 kilometres per second per megaparsec, aligning more closely with earlier measurements. This breakthrough could reshape our understanding of the universe’s expansion and evolution.Venus's Thin CrustNew research indicates that Venus's crust is unexpectedly thin, challenging previous assumptions about the planet's geology. A study published in Nature Communications reveals that Venus lacks the tectonic activity seen on Earth, resulting in a crust that is about 40 to 65 kilometres thick. This research proposes a model of crust metamorphism that could explain how volcanic activity persists on Venus, despite the absence of plate tectonics. Upcoming missions, including NASA's Davinci and Veritas, aim to gather more data that could confirm these findings and enhance our understanding of Venus's geological processes.Building Blocks of Stellar FormationA recent study highlights that the formation of stars is influenced not only by the amount of gas in a galaxy but also by its distribution. Observations from the WALLABY survey, conducted using the Australian Square Kilometre Array Pathfinder Telescope, reveal that star formation is concentrated in areas with higher gas density. Lead author Seona Lee explains how this research sheds light on the intricate processes that govern star formation, suggesting that gas location is critical for the birth of new stars across various galaxy types.www.spacetimewithstuartgary.com✍️ Episode ReferencesAstrophysical Journalhttps://iopscience.iop.org/journal/0004-637XNature Communicationshttps://www.nature.com/naturecommunications/Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.00:00 This is Space Time Series 28, Episode 66 for broadcast on 2 June 202501:00 Resolving the Hubble constant debate12:15 Venus's surprisingly thin crust22:30 Building blocks of stellar formation30:00 Science report: New links between autism and Parkinson's disease

Sponsor Details:This episode is brought to you with the support of Insta360 - the leaders in 360 degree video. To check out the range and grab your special SpaceTime bonus, visit store.insta360.com and use the coupon code SpaceTime at checkout.In this episode of SpaceTime, we delve into groundbreaking advancements in our understanding of gravity, the intriguing thermal characteristics of the Moon, and the discovery of white dwarf pulsars.A New Theory of GravityScientists have proposed a revolutionary new theory of gravity that brings us closer to the long-sought theory of everything. This quantum theory of gravity aims to unify gravity with the fundamental forces of nature, offering potential solutions to some of the most profound questions in physics, including the nature of dark matter and dark energy. We explore the implications of this theory and how it could reshape our understanding of the universe's origins and the behavior of black holes.The Moon's Hot SideRecent findings suggest that the Moon's near side is significantly hotter than its far side, with temperatures reaching up to 170 degrees Celsius higher. This research, based on data from NASA's GRAIL mission, reveals how geological differences between the lunar sides could be attributed to thermal variations in the Moon's mantle. We discuss the potential for these methods to enhance our understanding of other celestial bodies, including Mars and the moons of Jupiter and Saturn.White Dwarf Pulsars: A Stellar DiscoveryAstronomers have made a remarkable discovery of a white dwarf star that emits radio pulses, challenging the notion that only neutron stars can produce such signals. This discovery, reported in Nature Astronomy, opens up new avenues for understanding pulsar mechanisms and their sources across the Milky Way. We examine the significance of this finding and what it means for our knowledge of stellar evolution.www.spacetimewithstuartgary.com✍️ Episode ReferencesReports on Progress in Physicshttps://iopscience.iop.org/journal/0034-4885Naturehttps://www.nature.com/nature/Nature Astronomyhttps://www.nature.com/natureastronomy/Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.00:00 This is Space Time Series 28, Episode 65 for broadcast on 30 May 202501:00 New theory of gravity12:15 The Moon's thermal characteristics22:30 Discovery of white dwarf pulsars30:00 Skywatch: June night skies and the Taurids meteor shower

Sponsor Details:This episode is brought to you with the support of Insta360 - the game changer in 360-degree camera technology. Capture stunning moments with the Insta360 X5, which records 8K 360-degree video. To bag a free invisible selfie stick with your purchase, head to store.insta360.com and use the promo code SpaceTime!In this episode of SpaceTime, we uncover remarkable revelations about Jupiter, lightning-induced gamma rays, and groundbreaking achievements in spaceflight.Jupiter's Magnificent PastA new study reveals that Jupiter, the solar system's largest planet, was once twice its current size and possessed a magnetic field 50 times stronger than today. Researchers, led by Konstantin Batygin, used the orbits of Jupiter's small moons, Amalthea and Thebe, to deduce these findings, providing critical insights into the early stages of planetary formation. The implications of this research could reshape our understanding of gas giants and their formation processes across the universe.Gamma Rays and LightningIn a groundbreaking discovery, scientists have detected intense flashes of gamma rays produced by lightning strikes. This phenomenon, known as terrestrial gamma ray flashes, occurs when lightning accelerates electrons to near light speeds, resulting in bursts of radiation. The study, published in Science Advances, sheds light on the high-energy processes occurring in Earth's atmosphere, enhancing our understanding of lightning's power and its effects on our planet.Precision Formation Flying in SpaceHistory has been made in Earth orbit as two spacecraft from the European Space Agency's Proba 3 mission successfully flew in millimeter-perfect formation for the first time. This precision alignment is crucial for studying the Sun's corona, allowing the two satellites to simulate a single large spacecraft. We discuss the technology behind this mission and its potential to revolutionize solar observations.www.spacetimewithstuartgary.com✍️ Episode ReferencesNature Astronomyhttps://www.nature.com/natureastronomy/Science Advanceshttps://www.science.org/journal/sciadvBecome a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.00:00 This is Space Time Series 28, Episode 64 for broadcast on 28 May 202501:00 Jupiter's original size and magnetic field12:15 Gamma ray flashes unleashed by lightning22:30 Precision formation flying in space30:00 Science report: New contact lens technology for night vision

Sponsor Details:This episode is brought to you with the support of Insta360 - for incredible 360 degree videos you really need to check their cameras out. To see the range and claim your free offer, visit store.insta360.com and use the coupon code SpaceTime at checkout.In this episode of SpaceTime, we explore some mind-bending revelations about the universe, including a new estimate for its ultimate fate, the peculiar gravity of the asteroid Bennu, and India's ambitious plans for its first manned spaceflight.The Universe's Unexpected Expiration DateA groundbreaking study suggests that the universe could meet its end in a mere 10^78 years, significantly sooner than the previously estimated 10^1100 years. This revelation, based on calculations involving Hawking radiation, sheds light on how black holes and other celestial bodies lose mass over time. We discuss the implications of this research and the fascinating mechanics behind black hole evaporation, including the surprising equivalence in decay rates between neutron stars and black holes.Gravity's Quirks on Asteroid BennuAstronomers have uncovered bizarre gravitational dynamics at play on the near-Earth asteroid Bennu, based on data from NASA's Osiris Rex mission. This small celestial body exists in a delicate balance between gravity and centrifugal forces, creating a unique environment that could lead to its eventual disintegration. We delve into how Bennu's increasing rotation might impact its structural integrity and potential future interactions with Earth.India's Manned Spaceflight AmbitionsThe Indian Space Research Organization (ISRO) has announced plans for its first manned spaceflight, set to launch in early 2027. This historic mission will follow an unmanned test flight of the Gaganyan spacecraft, which is designed to carry a crew into low Earth orbit. We discuss the training and preparations of the selected Indian Air Force pilots and the technical challenges ISRO faces as it embarks on this new frontier in space exploration.www.spacetimewithstuartgary.com✍️ Episode ReferencesJournal of Cosmology and Astroparticle Physicshttps://www.cosmos.esa.int/cosmologyNature Astronomyhttps://www.nature.com/natastronomy/Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.00:00 This is Space Time Series 28, Episode 63 for broadcast on 26 May 202501:00 New estimates on the universe's end12:30 The strange gravity of asteroid Bennu22:45 India's plans for its first manned spaceflight30:00 Science report: Herpes virus linked to Alzheimer's disease