SpaceTime: Your Guide to Space & Astronomy

Stuart Gary
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Sep 16, 2025 • 33min

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 MarsNASA 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 MakemakeIn 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 EclipseA 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 ReferencesNaturehttps://www.nature.com/Astrophysical Journal Lettershttps://iopscience.iop.org/journal/2041-8205Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.Potential Biosignatures on MarsAtmosphere Discovered on MakemakeTotal Lunar Eclipse
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Sep 12, 2025 • 20min

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 OriginsRecent 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 LaunchIsrael 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 FuelScientists 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 ReferencesNature Astronomyhttps://www.nature.com/nature-astronomy/Journal of the American Chemical Societyhttps://pubs.acs.org/journal/jacsatBecome a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.Nigel About Earth's Water OriginsIsrael's New Spy Satellite LaunchRevolutionary High-Energy Rocket Fuel
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Sep 11, 2025 • 21min

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 ImaginedRecent 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 FormationA 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 ReferencesAstrophysical Journal Lettershttps://iopscience.iop.org/journal/2041-8205Monthly Notices of the Royal Astronomical Societyhttps://academic.oup.com/mnrasCornell Universityhttps://www.cornell.edu/Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.Solar Flares Hotter Than Ever ImaginedNew Insights into Jupiter's Core FormationCould Life Thrive on Nearby Exoplanets?
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Sep 8, 2025 • 23min

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 MantleA 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 DiscoveryIn 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 SunAstronomers 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 ReferencesNASAhttps://www.nasa.gov/Curtin Universityhttps://www.curtin.edu.au/European Space Agencyhttps://www.esa.int/Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.
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Sep 5, 2025 • 36min

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 DetectedAstronomers 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 HibernationNASA'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 SpaceIn 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 ReferencesAstrophysical Journal Lettershttps://iopscience.iop.org/journal/2041-8205NASAhttps://www.nasa.gov/Nature Chemistryhttps://www.nature.com/nchem/Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.Brightest Fast Radio Burst DetectedNew Horizons Enters Record HibernationRevolutionary Oxygen Generation in Space
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Sep 3, 2025 • 23min

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 TrackThe 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 CalibrationNASA'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 DustIn 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 ReferencesEuropean Space Agencyhttps://www.esa.int/NASAhttps://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
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Sep 1, 2025 • 34min

Stellar Success: SpaceX's Starship Soars and Mars' Mysteries Uncovered

In this episode of SpaceTime, we delve into thrilling advancements in space exploration, including a remarkable test flight of SpaceX's Starship, groundbreaking insights into Mars, and a classified mission from the United States Space Force.Starship's Spectacular Test FlightAfter overcoming numerous challenges, SpaceX's Starship has successfully completed its 10th test flight, launching from Texas and splashing down in the Indian Ocean. This flight demonstrated the rocket's capabilities, including a controlled splashdown of the Super Heavy booster and the successful deployment of Starlink satellite simulators. The mission provided critical data on the vehicle's performance during reentry, including stress testing its heat shield.New Insights into MarsThe European Space Agency's Mars Express Orbiter has provided new observations of the Acheron Foci region, revealing the geological forces that have shaped the Red Planet. These findings highlight the impact of ancient geological upheaval and climatic shifts on Mars' landscape, offering clues about its past and the dynamic processes that continue to influence its environment today.Space Force's Secret Shuttle MissionThe United States Space Force has launched its 8th X37B space shuttle mission, utilizing a SpaceX Falcon 9 rocket. This classified mission aims to test next-generation technologies, including advanced laser communication systems and quantum sensors. The versatile X37B continues to serve as a platform for various operational demonstrations and experiments in space.www.spacetimewithstuartgary.com✍️ Episode ReferencesEuropean Space Agencyhttps://www.esa.int/NASAhttps://www.nasa.gov/Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.
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Aug 29, 2025 • 19min

Rogue Worlds and Solar Power

This episode is brought to you by the support of Insta360 - the leaders and innovators in portable 360 Photography. And they have just released the all new UltraGo...the take anywhere camera. Get all the details by visiting store.insta360.com and use the promo code SPACETIME at checkout for our special listener offer. In this episode of SpaceTime, we explore groundbreaking discoveries and developments in the realm of astrophysics and space exploration.Rogue Planets and Their PotentialA fascinating new study reveals that giant free-floating planets, known as rogue planets, may have the ability to form their own miniature planetary systems independently of a host star. Observations from the Webb Space Telescope have identified young rogue planets with masses between 5 to 10 times that of Jupiter. These dim objects, which emit primarily in the infrared spectrum, are believed to hold secrets about the formation of planetary systems. The findings indicate that disks of warm dust surrounding these planets could provide the necessary materials for planet formation, suggesting that such systems could exist even in the absence of stars.Europe's Space Rider ProgressesThe European Space Agency's reusable Space Rider spacecraft has successfully completed a crucial test of its nose cone, marking another milestone in its development. This innovative spacecraft will allow ESA to conduct orbital missions and return scientific payloads to Earth. Designed to operate as an unmanned laboratory in low Earth orbit, Space Rider will support a variety of experiments and technology demonstrations, paving the way for Europe to enhance its capabilities in space exploration.Harvesting Solar Power from SpaceCould space-based solar panels be the solution to our energy needs? Scientists are investigating two promising projects aimed at capturing solar energy in orbit. The Innovative Heliostat Swarm aims to create a network of mirrors that direct sunlight to a central receiver, converting it into electricity for transmission back to Earth. Meanwhile, the Mature Planar Array is closer to deployment but will only capture solar energy about 60% of the time. Despite current challenges in cost-effectiveness, these projects could lead to breakthroughs in sustainable energy.www.spacetimewithstuartgary.com✍️ Episode ReferencesAstrophysical Journalhttps://iopscience.iop.org/journal/2041-8205European Space Agencyhttps://www.esa.int/Journal of Solar Energyhttps://www.journals.elsevier.com/solar-energyBecome a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.
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Aug 27, 2025 • 21min

Cosmic Horror: The Discovery of a Wandering Black Hole and a Meteorite's Journey

This episode of SpaceTime is brought to you by Insta360's newest camera, the GoUltra. To get more details on this go anywhere camera, visit store.insta360.com and for our special offer use the code SPACETIME at checkout.In this episode of SpaceTime, we uncover the mysteries lurking in the cosmos, from a rogue supermassive black hole to a meteorite crash in Georgia, and the origins of asteroids Bennu and Ryugu.An Invisible Monster in the CosmosAstronomers have made a chilling discovery of a supermassive black hole, 600 million light years away, that has been lurking in the darkness of space. Using NASA's Hubble and Chandra space telescopes, along with a Very Large Array radio telescope, researchers identified this rogue black hole that consumes stars and planets that venture too close. The black hole was revealed through a tidal disruption event, where a star was torn apart and swallowed, offering a glimpse into the physics of these cosmic behemoths.Meteorite Slams into Georgia HomeIn an extraordinary event, a meteorite crashed through a house in Atlanta, Georgia, on June 26, narrowly missing the homeowner. Witnessed by hundreds, the fireball streaked across the sky before fragments penetrated the roof and ceiling. Planetary geologist Scott Harris retrieved samples for analysis, revealing the meteorite's origins in the asteroid belt, dating back 4.56 billion years, and potentially linked to the breakup of a larger asteroid.Origins of Asteroids Bennu and RyuguRecent research suggests that both Bennu and Ryugu may share a common ancestry, originating from the same collisional family of asteroids known as Polana. Spectral data comparisons indicate similarities between these asteroids, supporting the hypothesis that they were formed from the remnants of a larger body that fragmented early in the solar system's history. This discovery opens new avenues for understanding the evolution of these near-Earth asteroids.www.spacetimewithstuartgary.com✍️ Episode ReferencesAstrophysical Journal Lettershttps://iopscience.iop.org/journal/2041-8205Planetary Science Journalhttps://www.cambridge.org/core/journals/planetary-science-journalBecome a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.
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Aug 25, 2025 • 28min

Cosmic Encounters: Asteroids, Moons, and the Milky Way's Future Unveiled

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 offer, visit store.insta360.com and use the promo code SPACETIME at checkout.In this episode of SpaceTime, we explore thrilling recent discoveries and events in the cosmos, including close encounters with asteroids, a newly discovered moon around Uranus, and the cosmic dance of dwarf galaxies.Earth Dodges Two Asteroid Near MissesPlanet Earth has narrowly avoided two asteroid near misses within days of each other. The first, asteroid 2025 PF2, zipped past at an altitude of just 22,000 kilometers, while the second, 2025 PU1, came even closer at 29,000 kilometers. Both asteroids, small yet significant, highlight the ongoing risks posed by near-Earth objects, with 2025 PU1 being particularly alarming as it was only detected hours after its closest approach.A New Moon for UranusAstronomers have identified a new moon orbiting Uranus, bringing the total number of known satellites to 26. Detected using NASA's Webb Space Telescope, this moon, estimated to be about 10 kilometers in diameter, eluded previous observations, including those from the Voyager 2 mission. Its discovery adds to the complexity of Uranus's moon system and raises questions about the chaotic history of its rings and satellites.Dancing Dwarf Galaxies and the Milky Way's FateA new study suggests that the fate of our Milky Way galaxy is intricately tied to the gravitational interactions with smaller dwarf galaxies as it approaches a merger with the Andromeda galaxy. By studying similar galactic systems, researchers aim to predict how these cosmic dances will influence the evolution of our galaxy over the next few billion years, providing insights into dark matter and cosmic structure.www.spacetimewithstuartgary.com✍️ Episode ReferencesMonthly Notices of the Royal Astronomical Societyhttps://academic.oup.com/mnrasNASA's Webb Space Telescopehttps://www.nasa.gov/mission_pages/webb/main/index.htmlBecome a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.

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