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SpaceTime: Your Guide to Space & Astronomy

Stuart Gary

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ASTRONOMIE
CHAQUE SEMAINE

Join host Stuart Gary for weekly explorations into Astronomy, Space, and Science News, featuring insights from 19 years on Australian Public Radio and industry experts. Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-your-guide-to-space-astronomy--2458531/support.

-10 H

Mars' Microbial Secrets: Potential Biosignatures Uncovered

In this episode of SpaceTime, we dive into groundbreaking discoveries on Mars, the intriguing atmosphere of Makemake, and the awe-inspiring total lunar eclipse that captivated millions. Potential Biosignatures on Mars NASA scientists have revealed that samples collected by the Perseverance rover from Jezero Crater may hold the best chance yet of uncovering evidence of past microbial life. The samples, taken from the rock formation known as Chiava Falls, exhibit characteristics that could indicate potential biosignatures. These findings suggest that Mars may have been habitable for longer than previously thought, challenging earlier assumptions about the planet's history. Atmosphere Discovered on Makemake In a remarkable discovery, astronomers have detected indications of a methane gas atmosphere on the distant dwarf planet Makemake. This finding, made using NASA's Webb Space Telescope, suggests the presence of a tenuous atmosphere or possibly cryovolcanic activity. Makemake, which resides in the Kuiper Belt, is now only the second known trans-Neptunian object, after Pluto, to have confirmed gaseous presence, revealing its dynamic nature and potential for active geology. Total Lunar Eclipse A stunning total lunar eclipse has mesmerised observers across Australia, Europe, Africa, and Asia. This celestial event transformed the full moon into a blood-red spectacle as Earth’s shadow obscured it. The eclipse lasted over five hours, showcasing the beauty of orbital mechanics and providing a thrilling experience for stargazers. www.spacetimewithstuartgary.com ✍️ Episode References Nature https://www.nature.com/ Astrophysical Journal Letters https://iopscience.iop.org/journal/2041-8205 Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support. Potential Biosignatures on Mars Atmosphere Discovered on Makemake Total Lunar Eclipse

33 min
-1 J • ABONNÉS UNIQUEMENT

Celestial Wonders: From Mars' Past Life to Makemake's Atmosphere: S28E111, 112 & 113

SpaceTime S28E111 S28E112 S28E113 w/c September 15th, 2025 Space, Astronomy and Science Podcast. SpaceTime Series 28 Episode 111 *Discovery of potential biosignatures on Mars Scientists with NASA claim samples collected by the Mars Perseverance rover from an ancient dry riverbed in Jezero Crater might be the best chance yet of discovering evidence of past microbial life on the red planet. *An atmosphere discovered on the frozen world of Makemake Indications of methane gas atmosphere have been detected on the distant dwarf planet Makemake in the dark outer reaches of the solar system. *Total Lunar eclipse wows half the world Parts of Australia, Europe, Africa, and Asia experience a front row seat for a spectacular total lunar eclipse. *The Science Report Warnings that a quarter of recent heatwaves would have been impossible without climate change. The latest check-up of Australia’s sexual health. The Australian Navy’s new autonomous unmanned Ghost Shark submarines. Skeptics guide to simply really bad journalism. SpaceTime Series 28 Episode 112 *Ancient rocks revealing how a supercontinent broke apart Scientists examining rare minerals found in outback Australia have shown how huge tectonic forces tore apart the supercontinent of Rodinia more than 800 million years ago. *Scientists confirm water once flowed on the asteroid Ryugu Scientists have shown that liquid water once flowed on the parent body that spawned the near-Earth asteroid Ryugu more than a billion years after it first formed. *The origins of Globular Clusters For centuries, astronomers have puzzled over the origins of some of the universe's oldest and densest stellar systems, known as globular clusters, and now they may have the answer. *The Science Report Study finds the more psychiatric disorders you have the more likely you are to develop dementia. The Australian Air Force completes flight trials of the new MQ-28 Ghost Bat unmanned stealth fighter. Warnings that plant-based foods for dogs might not meet nutritional guidelines for our best-friends health. Alex on Tech iphone 17 released and on sale from today. SpaceTime Series 28 Episode 113 *The search for exploding black holes A new study suggests that astronomers could catch a black hole in the process of dying. *Immense stellar jet seen on the outskirts of the Milky Way galaxy Astronomers have discovered an immense stellar jet blasting out into deep space from the outskirts of the Milky Way galaxy. *Preparing for an Earth Observation satellite mission Developing a space mission is a long process that involves a lot of tests, sometimes in harsh environments. *The Science Report Posts in hate speech communities share similar speech patterns with posts for psychiatric disorders. After decades of research a chlamydia vaccine has been approved for koalas. A 67-year-old man is still alive six months after receiving a kidney from a genetically modified pig. Skeptics guide to an alleged alien UFO base in Alaska. https://spacetimewithstuartgary.com https://www.bitesz.com/show/spacetime/ This week’s guests include: NASA Administrator Sean Duffy Perseverance scientist Joel Hurowitz from Stony Brook University Perseverance project scientist Katie Stack Morgan from NASA’s Jet Propulsion Laboratory in Pasadena California Professor Chris Kirkland from Curtin University ESA Scientific Campaign Coordinator Tania Casal Rene Forsberg from Denmark’s National Space Institute And our regular guests: Alex Zaharov-Reutt from techadvice.life Tim Mendham from Australian Skeptics 🌏 Get Our Exclusive NordVPN deal here ➼ www.bitesz.com/nordvpn . The discount and bonuses are incredible! And it’s risk-free with Nord’s 30-day money-back guarantee! ✌

1 h 17 min
-4 J

Water Origins: Comets, Satellites, and Rocket Fuels

Sponsor Details: This episode of SpaceTime is brought to you with the support of Insta360. Capture your adventures with their latest game-changer, the GOUltra. For a special SpaceTime listener offer, visit store.insta360.com and use the promo code SPACETIME at checkout. Help support SpaceTime and get a great deal. Win/win! In this episode of SpaceTime, we explore fascinating insights into the origins of Earth's water, the launch of Israel's advanced spy satellite, and the development of a groundbreaking high-energy rocket fuel. About Earth's Water Origins Recent findings suggest that the water in Comet 12P Pons-Brooks shares the same isotopic signature as Earth's oceans, bolstering the hypothesis that comets played a vital role in delivering water and essential ingredients for life to our planet. Observations from the Atacama Large Millimetre/Submillimeter Array telescope reveal that the deuterium to hydrogen ratio in the comet's water is remarkably similar to that found in Earth's oceans, providing compelling evidence that some Halley-type comets may have contributed to making Earth habitable. Israel's New Spy Satellite Launch Israel has successfully launched its Ofek 19 surveillance satellite to monitor terrorist activities across the Middle East. The satellite, equipped with advanced optical and radar systems, is designed to provide high-resolution imagery under various conditions. This launch comes amid ongoing tensions in the region, as Israel seeks to enhance its intelligence capabilities in response to recent attacks. Revolutionary High-Energy Rocket Fuel Scientists have synthesised a new high-energy compound, manganese diboride, which could revolutionise rocket fuel efficiency. This innovative fuel is over 20% more energetic by weight and 150% more energetic by volume than traditional aluminium-based fuels. The safety and efficiency of manganese diboride may significantly enhance payload capacities for space missions, paving the way for more ambitious exploration efforts. www.spacetimewithstuartgary.com ✍️ Episode References Nature Astronomy https://www.nature.com/nature-astronomy/ Journal of the American Chemical Society https://pubs.acs.org/journal/jacsat Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support. Nigel About Earth's Water Origins Israel's New Spy Satellite Launch Revolutionary High-Energy Rocket Fuel

20 min
-5 J

Solar Flares, Jupiter's Core, and Life on Exoplanets

Sponsor Details: This episode of SpaceTime is brought to you with the support of Insta360. Capture your adventures with their latest game-changer, the GOUltra. For a special SpaceTime listener offer, visit store.insta360.com and use the promo code SPACETIME at checkout. Help support SpaceTime and get a great deal. Win/win! In this episode of SpaceTime, we delve into some astounding revelations in solar physics and planetary science, including the extreme temperatures of solar flares, new insights into the formation of Jupiter's core, and the tantalising possibility of life evolving on nearby exoplanets. Solar Flares Hotter Than Ever Imagined Recent research has revealed that solar flares can reach temperatures exceeding 60 million degrees Celsius, a staggering six and a half times hotter than previously believed. This groundbreaking finding, published in the Astrophysical Journal Letters, may provide answers to a long-standing mystery regarding solar flare spectral lines. The study suggests that positively charged particles, or ions, are heated more intensely than electrons during these explosive events, leading to a significant revision of our understanding of solar flare dynamics. New Insights into Jupiter's Core Formation A new study challenges previous theories regarding the formation of Jupiter's core, suggesting that a giant impact may not be responsible for the planet's dilute core structure. Instead, it appears that Jupiter's core formed gradually through the absorption of heavy and light materials during its evolution. This revelation, supported by advanced computer simulations, indicates that the core does not have a distinct boundary but rather blends smoothly into the surrounding hydrogen layers, reshaping our understanding of gas giant formation. Could Life Thrive on Nearby Exoplanets? Exciting new research posits that life may be evolving right now on some of Earth's nearest exoplanets, despite the high levels of radiation they receive. Scientists have drawn parallels between the harsh conditions on these exoplanets and early Earth, where life first emerged amidst extreme ultraviolet radiation. This research highlights the potential for habitability on planets like Proxima b, igniting further interest in the search for extraterrestrial life. www.spacetimewithstuartgary.com ✍️ Episode References Astrophysical Journal Letters https://iopscience.iop.org/journal/2041-8205 Monthly Notices of the Royal Astronomical Society https://academic.oup.com/mnras Cornell University https://www.cornell.edu/ Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support. Solar Flares Hotter Than Ever Imagined New Insights into Jupiter's Core Formation Could Life Thrive on Nearby Exoplanets?

21 min
8 SEPT.

Martian Mysteries: Unearthing Asteroid Remnants

Sponsor Details: This episode of SpaceTime is brought to you with the support of Insta360. Capture your adventures with their latest game-changer, the GOUltra. For a special SpaceTime listener offer, visit store.insta360.com and use the promo code SPACETIME at checkout. Help support SpaceTime and get a great deal. Win/win! In this episode of SpaceTime, we uncover groundbreaking discoveries in planetary science and solar physics, including the remnants of ancient asteroids on Mars, the recovery of the Mother's Day meteorite, and new insights into solar energetic particles. Asteroid Remnants Found in Martian Mantle A new study reveals that fragments from ancient asteroids, which significantly impacted Mars around 4.5 billion years ago, are now trapped within the planet's mantle. Data from NASA's Mars Insight lander has provided unprecedented insights into the Martian interior, showing that these remnants, some up to four kilometres wide, offer a unique glimpse into Mars' geological history. The findings suggest a sluggish evolution of the Martian mantle, contrasting sharply with Earth's dynamic tectonic processes. Mother's Day Meteorite Discovery In an exciting expedition, scientists from Curtin University have successfully recovered a meteorite that lit up the skies over Western Australia on Mother's Day. Using the Desert Fireball Network, researchers pinpointed the meteor's landing site and undertook a challenging journey to retrieve samples. Preliminary analysis indicates that the meteorite is an ordinary chondrite, providing valuable insights into its origins and the solar system's history. Tracing Super Fast Electrons from the Sun Astronomers have identified two distinct origins for energetic particles emitted by the Sun, thanks to observations from the European Space Agency's Solar Orbiter mission. The research highlights the difference between solar energetic electrons linked to solar flares and those associated with coronal mass ejections. Understanding these two types of solar energetic particles is crucial for predicting space weather and protecting satellites and astronauts from radiation hazards. www.spacetimewithstuartgary.com ✍️ Episode References NASA https://www.nasa.gov/ Curtin University https://www.curtin.edu.au/ European Space Agency https://www.esa.int/ Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.

23 min
7 SEPT. • ABONNÉS UNIQUEMENT

Martian Mantle Mysteries: Unearthing Asteroid Remnants| S28E108, 109 & 110

SpaceTime S28E108 S28E109 S28E110 w/c September 8th, 2025 Space, Astronomy and Science Podcast. SpaceTime Series 28 Episode 108 *Asteroids trapped in the Martian interior A new study has concluded that asteroids that impacted Mars early in its history now lie scattered in giant lumps in the red planet’s mantle. *Discovering the Mother’s day Meteorite Scientists have recovered samples of a dazzling meteor which lit up Western Australian skies on Mother’s Day. *Tracing superfast electrons back to Sun Astronomers have discovered two separate origins for energetic particles being flung into space from the Sun. *The Science Report A 55% chance of a La Niña climate pattern developing sometime between now and November. Global Methane emissions are continuing to increase steadily with no signs of slowing down. The link between scrolling while sitting on the toilet and an increased risk of haemorrhoids. Skeptics guide to the latest pseudoscientific cue for autism SpaceTime Series 28 Episode 109 *Solar flares over 6 times hotter than previously thought A new study has shown that massive explosions of energy blasting off the Sun known as solar flares can reach temperatures of over 60 million degrees, some six and a half times hotter than previously thought. *Understanding how Jupiter formed its core The mystery of how Jupiter’s core was formed has just been given a new twist with computer simulations suggesting a giant impact couldn’t have created what astronomers are actually seeing. *Could life be evolving right now on our nearest exoplanets Scientists are speculating over the tantalising possibility that life could be evolving right now on some of the nearest exoplanets to Earth. *The Science Report New genetics study claims the first Australians arrived down under no more than 50 thousand years ago. Australia’s grim bushfire warning for spring. The new technology that Increases internet speeds by 45 percent. Alex on Tech: Samsung product launch SpaceTime Series 28 Episode 110 *Another clue about the origin of Earth’s water Water is essential for life as we know it. Now a new study has shown that the composition of water on the Comet 12P/Pons-Brooks has the same isotopic signature as Earth’s oceans. *Israel launches a new spy satellite Israel launches an advanced new spy satellite to monitor terrorist activities across the trouble plagued middle east. *Discovery of a new high-energy rocket fuel Scientists have created a new high-energy compound that could revolutionize rocket fuel and make space flights more efficient. *The Science Report Scientists modify a glue gun to print out bone grafts. Unfit preteens carrying extra belly fat more likely to suffer from mental health issues. Explosions of diversity through evolution explain why some groups of species are so dominant. Skeptics guide to current belief in UFOs https://spacetimewithstuartgary.com https://www.bitesz.com/show/spacetime/ This week’s guests include: Assoc Prof Nick Timms from Curtin University Joseph Doane from the University at Albany Gregory John from the University at Albany And our regular guests: Alex Zaharov-Reutt from techadvice.life Tim Mendham from Australian Skeptics 🌏 Get Our Exclusive NordVPN deal here ➼ www.bitesz.com/nordvpn . The discount and bonuses are incredible! And it’s risk-free with Nord’s 30-day money-back guarantee! ✌

57 min
5 SEPT.

Cosmic Revelations: The Brightest Fast Radio Burst and New Horizons' Hibernation Journey

In this episode of SpaceTime, we uncover some of the most exciting discoveries and developments in the universe, including the detection of the brightest fast radio burst ever observed, the New Horizons spacecraft's record-setting hibernation, and an innovative method for generating oxygen in space. Brightest Fast Radio Burst Detected Astronomers have identified what is being hailed as the brightest fast radio burst (FRB) ever recorded. Catalogued as FRB 2025 0316A, this extraordinary flash of energy was detected 130 million light years away in the spiral galaxy NGC 4141. The burst's unprecedented brightness and proximity provide scientists with a unique opportunity to study its origins and the environment surrounding it, potentially shedding light on the enigmatic sources of these fleeting cosmic phenomena. New Horizons Enters Record Hibernation NASA's New Horizons spacecraft has officially begun a record-setting hibernation period as it journeys through the Kuiper Belt, now over 9.2 billion kilometres from Earth. This hibernation will last until June 2026, surpassing its previous record of 273 days. Despite being in hibernation, the spacecraft will continue to collect valuable data on charged particles and dust in the outer heliosphere, which will be transmitted back to Earth upon reactivation. Revolutionary Oxygen Generation in Space In a significant advancement for future space missions, scientists have developed a new method for generating oxygen in space using neodymium magnets to enhance the electrolysis process. This innovative approach simplifies the extraction of oxygen bubbles from water, potentially replacing complex systems currently used in microgravity environments. By leveraging magnetic forces, this technique could improve the efficiency and reliability of oxygen production for astronauts. www.spacetimewithstuartgary.com ✍️ Episode References Astrophysical Journal Letters https://iopscience.iop.org/journal/2041-8205 NASA https://www.nasa.gov/ Nature Chemistry https://www.nature.com/nchem/ Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support. Brightest Fast Radio Burst Detected New Horizons Enters Record Hibernation Revolutionary Oxygen Generation in Space

36 min
3 SEPT.

Lunar Innovations: Creating Water and Fuel from Moon Dust and Psyche's Progress

In this episode of SpaceTime, we explore the latest developments in space exploration, including the European Space Agency's Juice mission, NASA's Psyche spacecraft, and groundbreaking advancements in lunar resource utilization. Juice Mission Back on Track The European Space Agency's Jupiter Icy Moons Explorer, Juice, is set for a critical flyby of Venus after overcoming a communications anomaly that temporarily severed contact with Earth. Engineers successfully restored communication with the spacecraft, which is now on its way to study Jupiter's Galilean moons—Ganymede, Callisto, and Europa—believed to harbor subsurface oceans that may support extraterrestrial life. The flyby will assist Juice in gaining the necessary speed for its journey to Jupiter, scheduled for arrival in 2031. Psyche Spacecraft Calibration NASA's Psyche spacecraft, launched in 2023, has successfully calibrated its onboard cameras as it journeys toward the metal-rich asteroid of the same name. The spacecraft aims to unlock the secrets of planetary cores and will utilize its cameras to capture images of Psyche's surface when it arrives in 2029. The calibration process includes imaging Earth and Mars to ensure the instruments perform optimally for their scientific objectives. Creating Resources from Moon Dust In a significant breakthrough, scientists have developed a method to produce water, oxygen, and methane fuel using lunar regolith, sunlight, and carbon dioxide from astronauts' breath. This innovation could drastically reduce the cost of transporting supplies from Earth to the Moon, paving the way for sustainable lunar bases and expanded space exploration capabilities. www.spacetimewithstuartgary.com ✍️ Episode References European Space Agency https://www.esa.int/ NASA https://www.nasa.gov/ Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support. Juice Mission Back on TrackPsyche Spacecraft CalibrationCreating Resources from Moon Dust

23 min

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Stuart Gary

Animation

Join host Stuart Gary for weekly explorations into Astronomy, Space, and Science News, featuring insights from 19 years on Australian Public Radio and industry experts. Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-your-guide-to-space-astronomy--2458531/support.

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Stuart Gary
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