Sinopsis
The new home of the ABCs (Australia) popular astronomy podcast (formerly known as StarStuff). Recognized worldwide by our listeners and industry experts as one of the best programs on Astronomy and Space Science.
Episodios
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Primordial Black Holes and Saturn's Ring Origins: Unveiling Cosmic Mysteries
20/02/2026 Duración: 22minSpaceTime with Stuart Gary Gary - Series 29 Episode 22In this episode of SpaceTime, we delve into the formation of the universe's most enigmatic objects, explore the origins of Saturn's iconic rings, and get updates on NASA's Artemis 2 mission.Black Holes and Exotic Cosmic StructuresA groundbreaking study suggests that some of the universe's most exotic entities, including black holes and cannibal stars, may have formed just seconds after the Big Bang. Researchers from the International School of Advanced Studies propose that subatomic particles condensed into halos of matter, which then collapsed to create these fascinating cosmic structures. Their findings, published in Physical Review D, indicate that even in the earliest moments of the universe, complex physical phenomena were already taking shape, paving the way for our understanding of cosmic evolution.The Formation of Saturn's RingsNew research proposes that Saturn's largest moon, Titan, may have formed from the collision of two older moons, potentiall
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Exploring Life's Potential on the Red Planet and Saturn's Tiny Moon
18/02/2026 Duración: 24minSpaceTime with Stuart Gary Gary - Series 29 Episode 21In this episode of SpaceTime, we explore intriguing revelations about the search for life on Mars, the surprising effects of Saturn's moon Enceladus on its planet, and the monumental volcanic events that reshaped Earth's tectonic landscape.Life on Mars: A New PerspectiveRecent findings suggest that non-biological processes cannot fully explain the organic compounds found in Martian regolith samples collected by NASA's Curiosity rover. Published in the journal Astrobiology, the study indicates that life may have contributed to some of these compounds, challenging previous assumptions. The research involved evaluating potential non-biological sources and concluded that the abundance of organics on Mars could hint at past life, sparking renewed interest in the Red Planet's potential habitability.Enceladus' Electromagnetic InfluenceA fascinating study reveals that Saturn's icy moon Enceladus trails a wake of electromagnetic ripples extending over half a millio
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Earth's Core Secrets and Solar Neutrinos: Unveiling the Mysteries of Our Planet and the Sun
17/02/2026 Duración: 32minIn this episode of SpaceTime, we dive into groundbreaking research revealing the true composition of the Earth's core, explore new insights into solar neutrinos, and uncover the complexities of Martian volcanoes.Earth's Core Contains Vast Hydrogen ReservoirA recent study published in Nature Communications indicates that Earth's core may hold up to 45 oceans' worth of hydrogen, challenging the long-held belief that water on our planet primarily came from asteroids and comets. Utilizing advanced laboratory techniques, researchers simulated the extreme conditions of the core to uncover its surprising hydrogen content, suggesting a significant internal source of water far beyond previous estimates.Neutrinos from the Sun's CoreA new dark matter experiment has successfully detected neutrinos originating from the Sun's core, marking a significant milestone in our understanding of these elusive particles. The LZ experiment at the Sanford Underground Research Facility captured signals from Brian 8 solar neutrinos, pro
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Black Hole Explosions and Martian Water Loss: Unraveling Cosmic Mysteries and Planetary Secrets
13/02/2026 Duración: 23minSponsor Link:This episode of SpaceTime is brought to with the help of Squarespace. When it's time to get online, you need Suarespace to make you look professional. To get the Spacetime special offer simply visit www.squarespace.com/spacetime or use the code SPACETIME at checkout.SpaceTime with Stuart Gary Gary - Series 29 Episode 19In this episode of SpaceTime, we explore astonishing discoveries in astrophysics, planetary science, and aerospace engineering.Astronomers Observe Possible Black Hole ExplosionAstronomers are investigating what could be the first ever observation of a black hole explosion. A recent study published in Physical Review Letters suggests that the mysterious high-energy neutrino detected in 2023 may have originated from a quasi-extremal primordial black hole. This type of black hole, theorized to exist since the Big Bang, could explain the otherwise unexplainable energy levels of the neutrino and potentially unlock the secrets of dark matter and the fundamental nature of the universe.Mar
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Dark Matter's Role and Lunar Mysteries: Unraveling the Secrets of Our Galaxy and Moon's Interior
11/02/2026 Duración: 29minSponsor Links:This episode of SpaceTime is brought to you with the support of Squarespace....your first stop when you want to build a presence online. To check out our special offers, simply visit www.squarespace.com/spacetime for detailsSpaceTime with Stuart Gary Gary - Series 29 Episode 18In this episode of SpaceTime, we explore groundbreaking theories about the nature of dark matter, the thermal differences between the lunar far and near sides, and new revelations regarding Jupiter's dimensions.Dark Matter's Role in the Milky WayA new study suggests that dark matter could be the driving force behind the gravitational dynamics of our Milky Way galaxy. Researchers propose that a clump of fermionic dark matter might exert similar gravitational influence as the supermassive black hole at the galaxy's center, Sagittarius A. This theory challenges conventional understanding and is supported by data from the European Space Agency's Gaia mission, which mapped the galaxy's outer halo and rotational curve, indicatin
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Solar Storms and Artemis Delays: Navigating the Fury of the Sun and Lunar Ambitions
09/02/2026 Duración: 31minSponsor Links:This episode of SpaceTime is brought to you with the support of Squarespace....your first stop when you want to build a presence online. To check out our special offers, simply visit www.squarespace.com/spacetime for all the detailsSpaceTime with Stuart Gary Gary - Series 29 Episode 17In this episode of SpaceTime, we delve into the recent powerful solar storm that has impacted Earth, the delay of NASA's Artemis 2 manned moon mission, and China's ambitious plans for a futuristic orbital space carrier.Massive Solar Storm Hits EarthThe sun has unleashed a barrage of solar eruptions, including 41 N-class flares and six X-class flares, with an X8.1 class flare setting a new record for 2026. This storm is described as the strongest radiation event in 20 years, with scientists noting its potential similarity to the historic 1859 Carrington event. The solar activity has disrupted radio communications and produced stunning auroras, while the sun continues its 11-year solar cycle.Nasa's Artemis 2 Mission
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Europa's Ice Shell and Planet Nine: Unveiling the Thickness of Frozen Worlds and Cosmic Oddities
07/02/2026 Duración: 19minSpaceTime with Stuart Gary Gary - Series 29 Episode 16In this episode of SpaceTime, we dive into groundbreaking revelations about Europa's ice shell, explore new evidence for the existence of a potential Planet Nine, and discuss a significant advancement in quantum physics that challenges the Heisenberg Uncertainty Principle.Europa's Ice Shell Thickness RevealedData from NASA's Juno mission has provided the first insights into the thickness of Europa's icy crust, estimating it to be around 29 kilometers. This measurement comes from Juno's 2022 flyby, where the spacecraft utilized its microwave radiometer to analyze the moon's surface temperature and characteristics. The findings suggest that beneath this thick ice lies a global ocean of liquid water, potentially harboring the ingredients necessary for life. Understanding the ice shell's structure is crucial for future missions, including NASA's Europa Clipper, set to arrive in 2030.The Case for Planet NineA new study published in Nature Astronomy presents fre
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Mercury's Hidden Activity and Titan's Dragonfly: Exploring Volatile Streaks and Robotic Rotocopters
04/02/2026 Duración: 19minSpaceTime with Stuart Gary Gary - Series 29 Episode 15In this episode of SpaceTime, we uncover intriguing discoveries about Mercury's geological activity, NASA's innovative Dragonfly mission to Titan, and the environmental impacts of rocket fuel pollution.Mercury's Surprising StreaksA new study reveals bright streaks, or lineae, on Mercury's surface, suggesting the planet is not as geologically inactive as previously thought. Researchers from the University of Bern utilized machine learning to analyze over 100,000 images from NASA's MESSENGER spacecraft, discovering that these streaks are likely caused by the outgassing of volatile materials from beneath Mercury's crust. This finding indicates ongoing geological processes and will be further explored by the BepiColombo mission, set to reach Mercury later this year.NASA's Dragonfly Mission to TitanNASA is developing the Dragonfly, a car-sized rotocopter designed to explore Saturn's moon Titan, which features methane and ethane lakes. Scheduled for launch in 20
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Earth's Water Origins and Io's Volcanic Secrets: Unveiling Tectonic Climate Drivers and Lunar Archives
03/02/2026 Duración: 23minIn this episode of SpaceTime, we explore new insights into the origins of Earth's water, groundbreaking discoveries beneath the surface of Jupiter's volcanic moon Io, and how tectonic plate movements may have influenced Earth's climate throughout history.New Clues on Earth's Water OriginsA recent study published in the Proceedings of the National Academy of Sciences reveals that asteroid and comet impacts could only account for a small fraction of Earth's water supply. By analyzing oxygen isotopes in lunar regolith collected during the Apollo missions, researchers found that the early Earth likely retained little to no water during its formative years. This challenges long-held beliefs and suggests that the majority of Earth's water must have originated from other sources, rather than being delivered by celestial bodies.Unprecedented Volcanic Activity on IoNASA's Juno spacecraft has captured remarkable data on Io, the most volcanically active body in our solar system. Observations from a December flyby reveal
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Cosmic Echoes and Jovian Secrets: Unraveling the Milky Way's Black Hole and Jupiter's Water Mysteries
30/01/2026 Duración: 42minSponsor Link:This episode is brought to you with thanks to Squarespace. Bring your stories to life with Squarespace, the easiest way to create an exceptional website, blog, portfolio, or online store. To take up our great offer and help support the show, just visit www.squarespace.com/spacetime or use the Promo Code SPACETIME at checkout.SpaceTime with Stuart Gary Gary - Series 29 Episode 13In this episode of SpaceTime, we uncover the hidden violent past of the Milky Way's supermassive black hole, delve into the origins of water on Jupiter's Galilean moons, and explore how meteor impacts are triggering dust avalanches on Mars.The Violent History of Sagittarius AFor years, Sagittarius A, the supermassive black hole at the center of our galaxy, has been perceived as a quiet entity. However, new research published in the Astrophysical Journal Letters indicates that it may have experienced dramatic flares in the past. Observations from the CRISM Space Telescope reveal X-ray emissions from a gas cloud near Sagitta
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Earth's Hidden Mantle Secrets: Mars' Blue Past and the Cosmic Gas Pipeline of Galaxy Growth
28/01/2026 Duración: 24minSponsor Link:This episode is brought to you with thanks to Squarespace. Bring your stories to life with Squarespace, the easiest way to create an exceptional website, blog, portfolio, or online store. To take up our great offer and help support the show, just visit www.squarespace.com/spacetime or use the Promo Code SPACETIME at checkout.SpaceTime with Stuart Gary Gary - Series 29 Episode 12In this episode of SpaceTime, we uncover groundbreaking discoveries about Earth's mantle, the watery past of Mars, and the rapid growth of galaxies through cool gas filaments.Distinct Histories of Earth’s Mantle ProvincesRecent research reveals that the two massive continent-sized regions deep within the Earth's mantle have unique chemical compositions and histories. This study challenges long-held assumptions and uses seismic wave data to illustrate how these large low velocity provinces differ in density and material, impacting the planet's heat extraction from the core and potentially affecting the stability of Earth's
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Solar Storms and Lunar Returns: The Artemis 2 Mission and Earth's Record-Breaking Solar Flare
27/01/2026 Duración: 26minSponsor Link:This episode is brought to you with thanks to Squarespace. Bring your stories to life with Squarespace, the easiest way to create an exceptional website, blog, portfolio, or online store. To take up our great offer and help support the show, just visit www.squarespace.com/spacetime or use the Promo Code SPACETIME at checkout.SpaceTime with Stuart Gary Gary - Series 29 Episode 11In this episode of SpaceTime, we dive into the latest astronomical events, including a record-setting solar storm impacting Earth, the historic Artemis 2 mission preparing to return astronauts to the Moon, and groundbreaking evidence confirming an ancient asteroid impact in the North Sea.Record-Breaking Solar Storm Strikes EarthPlanet Earth has recently experienced a massive geomagnetic storm triggered by an X1.9 class solar flare, followed by a coronal mass ejection. This event produced stunning auroras, visible as far north as Sydney and Brisbane. We discuss how such solar storms can affect technology on Earth and in spa
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Nuclear Rockets and Cosmic Mergers: Exploring the Future of Space Travel and Galactic Evolution
23/01/2026 Duración: 17minSpaceTime with Stuart Gary Gary - Series 29 Episode 10In this episode of SpaceTime, we explore groundbreaking developments in space exploration, including the imminent launch of the first nuclear-powered rocket, the merging of low mass dwarf galaxies, and the intriguing connection between Earth-like planets and gas giants.The Dawn of Nuclear Rocket TechnologyHistory is set to be made as NASA and DARPA prepare to test the world’s first fully operational nuclear-powered orbital rocket. This innovative vehicle utilizes a nuclear thermal propulsion system that heats liquid hydrogen propellant through nuclear fusion, achieving nearly double the efficiency of conventional rockets. The test aims to validate reactor operation in orbit, potentially revolutionizing space travel by reducing transit times to Mars and allowing for larger payloads.Merging Dwarf Galaxies: A New DiscoveryA recent study published in the Astrophysical Journal Letters confirms that low mass dwarf galaxies can merge with one another. Observation
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Cosmic Mysteries: Unveiling the Secrets of Black Holes, Jupiter's Oxygen, and Earth's Gamma Ray Revolution
21/01/2026 Duración: 28minSpaceTime with Stuart Gary Gary - Series 29 Episode 9In this episode of SpaceTime, we unravel the enigma of the universe's mysterious little red dots, delve into groundbreaking insights from Jupiter regarding the evolution of our solar system's planets, and mark the commencement of construction on Earth's largest gamma-ray observatory.The Mystery of the Little Red DotsA fascinating new study reveals that the enigmatic little red dots observed in early images from the NASA Webb Space Telescope are, in fact, young black holes cloaked in ionized gas. Researchers from the Niels Bohr Institute's Cosmic Dawn Center have determined that these black holes, much smaller than previously thought, are in the process of consuming gas, which creates immense heat and radiation, giving them their distinctive red appearance. This discovery sheds light on the formation of some of the universe's earliest black holes just 700 million years after the Big Bang.Jupiter's Role in Planetary EvolutionNew simulations indicate that Jupi
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Mars and Earth's Climate: Unveiling the Cosmic Connection and Crew 11's Historic Return
20/01/2026 Duración: 29minSpaceTime with Stuart Gary Gary - Series 29 Episode 8In this episode of SpaceTime, we investigate the surprising ways Mars influences Earth's climate, hear about the safe return of Crew 11 following the first emergency medical evacuation from the International Space Station, and explore a cosmic clock that reveals insights into Australia's geological history.Mars: A Climate InfluencerA new study has unveiled that the orbit of Mars can significantly impact Earth's climate, even triggering ice ages. Researchers from the University of California Riverside utilized computer simulations to demonstrate how Mars’ gravitational pull alters Earth's orbit and affects long-term climatic cycles. The findings challenge previous assumptions about Mars' minimal influence and highlight the planet's role in shaping Earth's climatic patterns over millions of years.Crew 11's Safe ReturnNASA's SpaceX Crew 11 has successfully splashed down in the North Pacific Ocean after a historic emergency medical evacuation from the ISS. The
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Titan's Secrets: Unraveling the Chemistry of Life and the Enigma of Europa
18/01/2026 Duración: 29minSponsor Link:This episode of SpaceTime is brought to you with the support of Squarespace. When it's time to get a presence online, go with the folks who support us...and build the best websites easily. No hassles. You can check out their special offer for SpaceTime listeners by visiting our special URL....Click HereSpaceTime with Stuart Gary Gary - Series 29 Episode 7In this episode of SpaceTime, we delve into the intriguing possibilities surrounding the origins of life, including new findings from Saturn's moon Titan and the implications for our understanding of life beyond Earth. We also explore the latest research on Europa, one of Jupiter's moons, and uncover the sources of the sun's mysterious gamma rays.Life's Building Blocks on TitanA groundbreaking study reveals that Titan, Saturn's largest moon, exhibits unexpected chemical interactions at extremely low temperatures. Researchers found that hydrogen cyanide can mix with nonpolar substances like methane and ethane, challenging traditional chemistry pri
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Celestial Revelations: Betelgeuse's Hidden Companion and the Most Powerful Black Hole Event Ever Recorded
15/01/2026 Duración: 30minSponsor Links:This episode of SpaceTime is brought to you with the support of Squarespace. When it's time to get a presence online, go with the folks who support us...and build the best websites easily. No hassles. You can check out their special offer for SpaceTime listeners by visiting our special URL....Click HereSpaceTime with Stuart Gary Gary - Series 29 Episode 6In this episode of SpaceTime, we explore groundbreaking discoveries in astrophysics, including the confirmation of Betelgeuse's elusive companion star, a spectacular black hole event, and the BepiColombo spacecraft's approach to Mercury.Betelgeuse's Companion Star ConfirmedAstronomers have finally confirmed that the red supergiant star Betelgeuse has a companion star, named Saguara. Utilizing data from NASA's Hubble Space Telescope and ground-based observatories, researchers traced the influence of Saguara as it interacts with Betelgeuse's outer atmosphere. This discovery sheds light on the star's peculiar brightness variations and its eventual
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Galactic Mechanics: How Dark Matter and Neutrinos Shape the Universe
13/01/2026 Duración: 25minSponsor Link:This episode of SpaceTime is brought to you with the support of Squarespace. When it's time to get a presence online, go with the folks who support us...and build the best websites easily. No hassles. You can check out their special offer for SpaceTime listeners by visiting our special URL....Click HereIn this episode of SpaceTime, we uncover new evidence suggesting that dark matter may interact with neutrinos, a revelation that could reshape our understanding of the universe. We also discuss a serious medical issue that has forced one of the crews aboard the International Space Station to return home early, and learn about the remarkable discovery that galaxies spin like clockwork.Dark Matter and Neutrinos: A Possible InteractionScientists are challenging the long-standing standard model of particle physics with new findings indicating that dark matter and neutrinos may interact. This groundbreaking research, reported in Nature Astronomy, provides a rare glimpse into the universe's hidden compon
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Galactic Mysteries: Unveiling Supermassive Black Holes and the Secrets of Comet 3I Atlas
09/01/2026 Duración: 20minSpaceTime with Stuart Gary Gary - Series 29 Episode 4In this episode of SpaceTime, we explore the latest revelations about supermassive black holes, the enigmatic interstellar comet 3I Atlas, and NASA's innovative tests on lunar surface interactions.Do All Galaxies Host Supermassive Black Holes?A groundbreaking study utilizing NASA's Chandra X-ray Observatory challenges the long-held belief that all galaxies harbor supermassive black holes at their centers. Analyzing data from over 1,600 galaxies, researchers discovered that only about 30% of dwarf galaxies contain these cosmic giants. The findings, published in the Astrophysical Journal, provide crucial insights into the formation of supermassive black holes and suggest that smaller galaxies may have significantly fewer black holes than their massive counterparts.No Evidence of Alien Intelligence from Comet 3I AtlasDespite sensational claims, a thorough investigation into the interstellar comet 3I Atlas has yielded no signs of extraterrestrial technology. Ob
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Cosmic Clues: Unlocking Dark Matter Secrets from a Distant Supernova
08/01/2026 Duración: 20minSpaceTime with Stuart Gary Gary - Series 29 Episode 3In this episode of SpaceTime, we delve into the latest discoveries in astrophysics and the challenges faced by space agencies worldwide.Ancient Supernova Offers Clues to Dark EnergyAstronomers have made significant strides in understanding dark energy, the enigmatic force driving the universe's accelerated expansion. A newly observed supernova, located 10 billion light years away, has been gravitationally lensed by a foreground galaxy, allowing scientists to analyze multiple images of the same explosion. This phenomenon could help determine the Hubble constant, shedding light on the universe's expansion rate and its ultimate fate, which ranges from a Big Crunch to a Big Rip.Sterile Neutrino Hypothesis Nearly Ruled OutAfter over a decade of research, scientists have come close to ruling out the existence of the sterile neutrino, a proposed particle that could explain anomalous neutrino behavior. Data from the Micro BooNE experiment at Fermilab has shown no s