Episodes

  • Super Kilonova Surprise: Unravelling the Mystery of Cosmic Explosions

    Super Kilonova Surprise: Unravelling the Mystery of Cosmic Explosions
    Dec 26 2025
    In this episode of SpaceTime, we uncover groundbreaking astronomical events and the latest advancements in space exploration.
    First Ever Super Kilonova Detected
    Astronomers have made a significant discovery with the potential detection of the first ever super kilonova explosion. This extraordinary event, cataloged as AT 2025ULZ, is believed to have been triggered by a double supernova explosion, producing both gravitational waves and electromagnetic radiation. Lead author Manzi Kasliwal from Caltech's Palomar Observatory discusses how this unique phenomenon could reshape our understanding of stellar evolution and the formation of heavy elements in the universe. With only one confirmed kilonova event to date, this new discovery presents an exciting opportunity to explore the complexities of cosmic explosions.
    Blue Ghost 2 Spacecraft Shake Test
    Firefly Aerospace's Blue Ghost Mission 2 spacecraft has undergone rigorous shake testing at NASA's Environmental Test Laboratory. This critical assessment simulates the intense vibrations and acoustics experienced during launch, ensuring the spacecraft can withstand the harsh conditions of a rocket ascent. JPL engineer Michael Williams explains the importance of these tests in preparing spacecraft for successful missions, as the Blue Ghost 2 aims to deliver multiple payloads to the lunar far side next year.
    Shenzhou 20 Capsule Returns Safely
    China's Shenzhou 20 spacecraft has successfully completed an unmanned return to Earth after sustaining damage from space debris. Initially intended to bring a crew of Tigernauts back home, mission managers opted for a safe return without the crew due to concerns over a crack in the capsule's viewport. This decision highlights the importance of safety in space missions, while also providing valuable data for future flights.
    www.spacetimewithstuartgary.com
    ✍️ Episode References
    Astrophysical Journal Letters
    NASA Reports
    Nature Communications
    Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-your-guide-to-space-astronomy--2458531/support.
    (00:00:00) This is Space Time Series 28, Episode 152 for broadcast on 26 December 2025
    (00:00:47) Astronomers detect what could be the first ever super kilonova explosion
    (00:15:30) Firefly Aerospace's Blue Ghost 2 spacecraft undergoes shake testing at NASA's JPL
    (00:20:10) China's Shenzhou 20 capsule returns safely to Earth after damage from space debris
    (00:25:00) New study reveals the benefits of swearing during physical exertion
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    28 mins
  • Martian Moves: Perseverance's Journey and Fashionable Microbes in Space

    Martian Moves: Perseverance's Journey and Fashionable Microbes in Space
    Dec 24 2025
    In this episode of SpaceTime, we explore significant advancements in space exploration and innovative scientific projects.
    Perseverance Rover's New Journey
    After nearly five years on Mars, NASA's Perseverance Rover is on the move again, heading to a new site on the rim of Jezero Crater named Lac du Charm. Having traversed over 40 kilometres and collected vital rock core samples, the rover is undergoing extensive evaluations to ensure its longevity, with engineers confident it can operate until at least 2031. We discuss the rover's advanced autonomous driving capabilities and its mission to uncover signs of past microbial life.
    Fashion Meets Science: Microbial Fabrics
    A groundbreaking project is set to merge fashion and science by sending specially designed fabrics made from bacteria into space. These innovative materials will change colour in response to radiation exposure, potentially protecting astronauts from harmful levels of UV radiation and offering new applications for skin cancer prevention on Earth. Lead researcher Giles Ballet shares insights into how this technology could revolutionise both space exploration and everyday fashion.
    Expedition 73 Crew Returns
    The Expedition 73 astronauts have safely returned to Earth after an eight-month mission aboard the International Space Station. Their journey has contributed to over 250 experiments, including advancements in bioprinting and remote robotic operations. We also discuss the implications of recent challenges faced by Russia's manned space program.
    www.spacetimewithstuartgary.com
    ✍️ Episode References
    Journal of Science
    NASA Reports
    Nature Communications
    Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-your-guide-to-space-astronomy--2458531/support.
    (00:00:00) This is Space Time Series 28, Episode 151 for broadcast on 24 December 2025
    (00:00:47) NASA's Perseverance Rover begins a new journey on Mars
    (00:12:30) Innovative microbial fabrics set to be tested in space
    (00:19:15) Expedition 73 crew returns safely to Earth after eight months in orbit
    (00:24:05) New study suggests humans have been using fire for 400,000 years
    (00:27:30) Technology tips for buying the right printer for your needs
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    24 mins
  • Stellar Ballet: Apep's Cosmic Dance and Titan's Liquid Mystery

    Stellar Ballet: Apep's Cosmic Dance and Titan's Liquid Mystery
    Dec 22 2025
    SpaceTime with Stuart Gary Gary - Series 28 Episode 150
    In this episode of SpaceTime, we delve into intriguing discoveries and ongoing challenges in the realm of astrophysics and planetary science.
    Cosmic Dance of Dying Stars
    Astronomers have made fascinating observations of a unique star system named Apep, located over 8,000 light years away in the constellation Norma. This rare system consists of three massive stars locked in a 190-year orbit, creating stunning spirals of cosmic dust. Using the advanced capabilities of NASA's Webb Space Telescope and the Very Large Telescope in Chile, researchers captured extraordinary images revealing four distinct dust shells spiraling outward from the stars. Lead author Ryan White from Macquarie University discusses how these findings enhance our understanding of stellar interactions and the evolution of massive stars over time.
    Titan's Liquid Ocean: A New Perspective
    A recent study challenges the long-held belief that Saturn's largest moon, Titan, harbors a vast underground ocean. Instead, researchers suggest that Titan may have a more complex internal structure characterized by slushy tunnels and pockets of meltwater rather than a global liquid water ocean. This revelation, based on a reanalysis of data from NASA's Cassini mission, could have significant implications for the search for potential life on Titan, indicating that any existing life forms might inhabit a more confined environment with concentrated nutrients.
    NASA's MAVEN: Communication Challenges
    Mission managers at NASA are working diligently to restore contact with the Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft, which went silent during a routine pass behind Mars on December 6. Engineers are analyzing data from before the loss of signal to identify the cause and determine if the spacecraft can be salvaged. MAVEN has been crucial for studying Mars' atmosphere and has served as a vital communications relay for surface missions.
    www.spacetimewithstuartgary.com
    ✍️ Episode References
    Astrophysical Journal
    Nature
    NASA TV
    Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-your-guide-to-space-astronomy--2458531/support.
    (00:00:00) This is space time series 28 episode 150 for broadcast on 22nd December 2025
    (00:00:47) NASA's Webb Space Telescope reveals four spectacular dust shells from distant star system
    (00:10:58) New study says Titan probably doesn't have a vast underground liquid water ocean
    (00:15:57) NASA mission managers continue efforts to restore contact with missing maven spacecraft
    (00:18:36) New study finds shared genetic patterns across 14 common psychiatric disorders
    (00:20:56) A new study claims acupuncture treatment for lower back pain reduces pain
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    26 mins
  • Cosmic Milestones: The Earliest Supernova and Martian Water Mysteries

    Cosmic Milestones: The Earliest Supernova and Martian Water Mysteries
    Dec 19 2025
    In this episode of SpaceTime, we uncover groundbreaking discoveries and exciting celestial events that illuminate our understanding of the universe.
    Earliest Supernova Ever Detected
    Astronomers have achieved a remarkable milestone by detecting the earliest supernova ever observed, dating back to a mere 730 million years after the Big Bang. Using the powerful Webb Space Telescope, this supernova, cataloged as GRB250314A, emitted a gamma ray burst that has shattered previous distance records. Lead author Andrew Levin shares insights into how this discovery provides a glimpse into the universe when it was only 5% of its current age, revealing surprising similarities with modern supernovae despite the vast differences in their epochs.
    Liquid Water on Mars: New Evidence
    New seismic data from NASA's Mars InSight lander suggests that liquid water could still exist beneath the Martian surface, potentially providing a habitat for microbial life. The analysis of marsquakes has revealed boundaries in the Martian crust that indicate the presence of water-filled cracks, offering compelling evidence that life may persist on the Red Planet. We discuss the implications of these findings and the methodologies used to analyze the Martian subsurface.
    The Great Geminids Meteor Shower of 2025
    The annual Geminid meteor shower is reaching its peak, presenting stargazers with the chance to witness up to 100 meteors per hour under optimal conditions. Unlike many meteor showers that originate from comets, the Geminids are unique as they come from the asteroid 3200 Phaethon. Dr. Robert Massey provides tips on how to best observe this spectacular celestial event, emphasizing the importance of dark skies and the naked eye for optimal viewing.
    www.spacetimewithstuartgary.com
    ✍️ Episode References
    Astronomy and Astrophysics
    British Medical Journal
    Nature Communications
    Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-your-guide-to-space-astronomy--2458531/support.
    (00:00:00) New clues suggest that liquid water could still exist on Mars today
    (00:00:48) Astronomers have detected the earliest supernova ever seen using the Webb Space Telescope
    (00:05:10) New study based on seismic data suggests liquid water may still exist on Mars
    (00:09:12) The Geminids are visible between now and December 20th
    (00:13:10) New study finds coffee may slow down biological aging of people with mental illnesses
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    19 mins
  • Gamma Ray Revolution: The Longest Burst and Cosmic Mysteries Unveiled

    Gamma Ray Revolution: The Longest Burst and Cosmic Mysteries Unveiled
    Dec 17 2025
    SpaceTime with Stuart Gary Gary - Series 28 Episode 147
    In this episode of SpaceTime, we delve into remarkable discoveries that significantly enhance our understanding of the cosmos.
    Longest Gamma Ray Burst Ever Detected
    Astronomers have made headlines with the discovery of the longest gamma ray burst ever recorded, GRB 250702B, which lasted over seven hours. This unprecedented event is reshaping our understanding of stellar explosions and their aftermath. Initial observations indicate that this extraordinary burst may have originated from a black hole consuming a star, prompting new theories about the mechanisms behind these powerful cosmic phenomena. We explore the implications of this finding and how it challenges existing models of gamma ray bursts.
    Elemental Bounty in Supernova Remnant
    For the first time, scientists have detected chlorine and potassium in the remnants of the supernova Cassiopeia A, utilizing the advanced capabilities of the CRISM spacecraft. This discovery sheds light on the elemental processes that occur during stellar explosions and their connection to the formation of elements crucial for life on Earth. We discuss the significance of these findings and their impact on our understanding of stellar nucleosynthesis.
    International Space Station Fully Occupied
    In a historic first, the International Space Station has reached full capacity, with all eight of its docking ports in use. We discuss the implications of this milestone, including the logistics of managing multiple spacecraft and the ongoing missions currently underway aboard the ISS.
    www.spacetimewithstuartgary.com
    ✍️ Episode References
    Monthly Notices of the Royal Astronomical Society
    Astrophysical Journal Letters
    Nature Astronomy
    Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-your-guide-to-space-astronomy--2458531/support.
    (00:00:00) This is space Time Series 28, Episode 147 full broadcast on 17 December 2025
    (00:00:47) Astronomers have detected the longest gamma ray burst ever detected
    (00:11:11) Astronomers have detected chlorine and potassium in a supernova remnant
    (00:18:27) International Space Station is fully occupied with all eight docking ports now in use
    (00:20:05) New study claims flavonoids may help improve insulin resistance
    (00:24:58) You're a multiple award winner. You've won in creative writing and controversy
    (00:26:05) Space Time is available every Monday, Wednesday and Friday through bitesz. com
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    27 mins
  • MAVEN's Silence: Unravelling the Mystery of Mars' Lost Contact

    MAVEN's Silence: Unravelling the Mystery of Mars' Lost Contact
    Dec 16 2025
    In this episode of SpaceTime, we explore significant developments in space exploration and cosmic studies that could reshape our understanding of the universe.
    Nasa's MAVEN Mars Orbiter: Communication Loss
    NASA's MAVEN (Mars Atmosphere and Volatile Evolution) spacecraft has gone silent, with contact lost on December 6th after passing behind Mars. The orbiter has been a vital asset for over a decade, studying the Martian atmosphere and solar wind interactions that have transformed Mars from a water-rich world to a cold desert. We delve into MAVEN's critical findings, including the mechanisms of atmospheric escape and the implications of its potential loss for ongoing Martian research.
    Galactic Neighbourhoods: Influencing Evolution
    A new study reveals how a galaxy's local environment can significantly affect its evolution. The research, published in the Monthly Notices of the Royal Astronomical Society, demonstrates that galaxies situated in densely populated regions tend to grow more slowly and develop different structures compared to their isolated counterparts. By analysing data from the Deep Extragalactic Visible Legacy Survey, astronomers have gained insights into the complex dynamics of galactic interactions and their impact on star formation rates.
    Uranus and Neptune: More Richie than Icy?
    Challenging long-held classifications, a recent study suggests that the solar system's ice giants, Uranus and Neptune, may actually be more rocky than icy. Researchers from the University of Zurich conducted computer simulations that indicate a broader range of internal compositions for these planets, which could explain their complex magnetic fields. This new perspective could alter our understanding of planetary formation and evolution, paving the way for future explorations of these distant worlds.
    www.spacetimewithstuartgary.com
    ✍️ Episode References
    Monthly Notices of the Royal Astronomical Society
    NASA TV
    Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-your-guide-to-space-astronomy--2458531/support.
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    28 mins
  • Uranus Unveiled: Decoding the Mystery of Radiation Belts and Martian River Systems

    Uranus Unveiled: Decoding the Mystery of Radiation Belts and Martian River Systems
    Dec 13 2025
    In this episode of SpaceTime, we tackle some of the most intriguing cosmic mysteries and discoveries that could reshape our understanding of the universe.
    Unraveling Uranus: The Mystery of Its Radiation Belts
    For 39 years, the intense electron radiation belts surrounding Uranus have puzzled scientists since NASA's Voyager 2 flyby in 1986 revealed unexpectedly high levels of radiation. New analyses suggest these findings may be explained by a solar wind structure interacting with the Uranian system during Voyager 2's visit. This research opens up new questions about the fundamental physics governing these extreme energy levels and the unique characteristics of Uranus itself.
    Mapping Martian River Systems: A Historic First
    A groundbreaking study has mapped ancient river systems on Mars, identifying 16 large drainage basins that could have supported life billions of years ago. By synthesizing previous data on Martian river valleys, lakes, and canyons, scientists have outlined how these systems could have formed a global network, similar to Earth's most biodiverse river basins. This research enhances our understanding of Mars' geological history and its potential for past life.
    2026 Australasian Sky Guide Released
    The 2026 Australasian Sky Guide has officially been released, offering skywatchers a detailed monthly map of celestial events. Highlights include supermoons, planetary alignments, and eclipses, providing an exciting year ahead for astronomy enthusiasts. Dr. Nick Glom shares insights into the guide's features and the astronomical events to look forward to in the coming year.
    www.spacetimewithstuartgary.com
    ✍️ Episode References
    Proceedings of the National Academy of Sciences
    Communications Earth and Environment
    Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-your-guide-to-space-astronomy--2458531/support.
    (00:00:00) Scientists may have finally resolved 39 year old mystery about Uranus radiation belts
    (00:03:55) A new study has begun the task of mapping ancient river systems on Mars
    (00:08:06) The 2026 Australasian Sky Guide has just been released
    (00:10:23) The book tells readers what's up in the sky for each month
    (00:11:39) Total eclipse of the moon in March is spectacular and easy to photograph
    (00:14:22) A new study suggests volcanic activity may have paved the way for the Black Death
    (00:15:37) A new study claims people who want children are more likely to find older faces attractive
    (00:17:33) Tim Mendham warns about the dangers of taking medical advice on social media
    (00:20:08) Spacetime is available through bitesz.com and other podcasting platforms
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    21 mins
  • Bennu's Bounty: Uncovering Sugars, Space Gum, and Stardust in Asteroid Samples

    Bennu's Bounty: Uncovering Sugars, Space Gum, and Stardust in Asteroid Samples
    Dec 10 2025
    SpaceTime with Stuart Gary - Series 28 Episode 145
    In this episode of SpaceTime, we explore groundbreaking discoveries that deepen our understanding of the origins of life and the dynamics of our galaxy.
    Sugars and Stardust: Insights from Asteroid Bennu
    NASA's Osiris Rex mission has returned samples from the asteroid Bennu, revealing the presence of biologically essential sugars, including ribose and glucose, along with a unique gum-like substance never before seen in astromaterials. These findings, published in Nature Geoscience and Nature Astronomy, suggest that the building blocks for life were widespread throughout the early solar system. The discovery of ribose supports the RNA world hypothesis, indicating that RNA might have been the first genetic material. Additionally, the presence of glucose hints at the early energy sources available for life on Earth.
    Stars Defying the Black Hole
    Astronomers have observed numerous stars in stable orbits around Sagittarius A, the supermassive black hole at the center of our galaxy. This discovery, reported in Astronomy and Astrophysics, challenges previous assumptions that these objects were merely clouds of dust on a collision course with destruction. Instead, the new data from the ERIS Enhanced Resolution Imager and Spectrograph reveals a dynamic and stable environment around the black hole, providing a unique laboratory for studying interactions between black holes and stars.
    Martian Mystery Solved?
    A new radar technique employed by NASA's Mars Reconnaissance Orbiter has cast doubt on the existence of a suspected underground lake beneath the Martian South Pole ice cap. Initial signals that suggested the presence of liquid water have been reinterpreted as possibly being layers of rock and dust. This innovative approach opens new avenues for investigating subsurface resources on Mars, which could have significant implications for future exploration.
    www.spacetimewithstuartgary.com
    ✍️ Episode References
    Nature Geoscience
    Nature Astronomy
    Astronomy and Astrophysics
    Geophysical Research Letters
    Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-your-guide-to-space-astronomy--2458531/support.
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    33 mins