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SpaceTime: Your Guide to Space & Astronomy

Stuart Gary
  • 1,0 (1)
  • ASTRONOMI
  • HVER UKE

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.

  1. Cosmic Beginnings and Stellar Discoveries: Unveiling the First Stars and Secrets of the Moon

    -1 D.

    Cosmic Beginnings and Stellar Discoveries: Unveiling the First Stars and Secrets of the Moon

    (00:00:00) Cosmic Beginnings and Stellar Discoveries: Unveiling the First Stars and Secrets of the Moon (00:00:47) Have astronomers finally seen the universe’s first stars (00:04:06) Hidden secrets about the Moon and the asteroid Vesta (00:10:45) Euclid peers deep into a stellar nursery full of baby stars (00:16:05) The Science Report (00:18:09) Skeptics guide to flat earthers falling flat on their face again In this episode of SpaceTime, we uncover groundbreaking findings that could reshape our understanding of the universe's early stars, the Moon's hidden secrets, and the asteroid Vesta's internal structure. First Stars Detected Astronomers may have finally glimpsed the universe's first stars, known as Population 3 stars, thanks to observations from NASA's Webb Space Telescope. These luminous giants, formed just 200 million years after the Big Bang, are believed to have ended the cosmic dark ages and initiated the epoch of reionisation. The episode delves into the significance of these findings, which suggest that these stars were formed in small clusters and exhibit extremely low metallicity, challenging previous theories about the early universe. Secrets of the Moon Revealed Two NASA studies have provided fascinating insights into the Moon's internal structure through advanced gravity modelling. By analysing data from the GRAIL mission, researchers have created the most detailed gravitational map of the Moon to date, revealing variations linked to tidal deformation. This research offers clues about the Moon's geological history and volcanic activity, particularly highlighting differences between the near and far sides of the Moon. New Insights into Asteroid Vesta In a parallel study, scientists examined the asteroid Vesta's structure using data from NASA's Dawn spacecraft. Contrary to earlier beliefs of a layered interior, new measurements suggest Vesta may have a more uniform composition, with only a small core, if any. This revelation challenges long-held assumptions about the formation and evolution of this ancient asteroid. Euclid Space Telescope's Stellar Nursery Observations The European Space Agency's Euclid Space Telescope has peered into the dark cloud LDN 1641, uncovering a vibrant stellar nursery filled with young stars. This segment discusses the significance of Euclid's observations, which not only aid in fine-tuning the telescope's capabilities but also contribute to our understanding of star formation and the cosmos. www.spacetimewithstuartgary.com ✍️ Episode References Astrophysical Journal Letters Nature Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-your-guide-to-space-astronomy--2458531/support.

    22 min
  2. Decelerating Cosmos and Solar Secrets: Unravelling Dark Energy and the Sun's Magnetic Dance

    -2 D.

    Decelerating Cosmos and Solar Secrets: Unravelling Dark Energy and the Sun's Magnetic Dance

    (00:00:00) Decelerating Cosmos and Solar Secrets: Unravelling Dark Energy and the Sun's Magnetic Dance (00:00:45) More confirmation that the Universe's expansion is slowing (00:08:53) First glimpse of the Sun’s polar magnetic field in motion (00:14:09) Space Weather events ramping up (00:18:24) The Science Report (00:20:29) Alex on Tech NEO the humanoid housekeeper In this episode of SpaceTime, we explore significant revelations about the universe's expansion, the Sun's magnetic field, and the current surge in solar weather activity. The Universe's Expansion Rate is Slowing A new study has confirmed that the universe's rate of expansion, which began after the Big Bang 13.8 billion years ago, is slowing down. This finding contradicts previous theories suggesting that the expansion was accelerating due to dark energy. We delve into the implications of this research, which indicates that dark energy may be evolving more rapidly than previously understood, potentially marking a paradigm shift in cosmology. The episode discusses various scenarios for the universe's future, including the Big Crunch, Steady State theory, Big Freeze, and Big Rip, and how these new observations could reshape our understanding of cosmic fate. First Glimpse of the Sun's Polar Magnetic Field Astronomers have captured their first detailed view of the Sun's polar magnetic field in motion, revealing unexpected rapid movements. The Solar Orbiter spacecraft has provided insights into the Sun's magnetic activity, which follows an 11-year cycle. This segment highlights the significance of the findings, which enhance our understanding of solar dynamics and the implications for space weather. Current Surge in Space Weather Events As the Sun reaches solar maximum, astronomers are observing increased solar storm activity, including multiple X-class and M-class solar flares. This segment discusses the effects of coronal mass ejections on Earth, including spectacular auroras and potential disruptions to technology and power grids. We explore the science behind solar flares and their impact on our planet, providing a comprehensive overview of current space weather conditions. www.spacetimewithstuartgary.com ✍️ Episode References Monthly Notices of the Royal Astronomical Society Astrophysical Journal Letters Nature Geoscience Journal of the American Medical Association Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-your-guide-to-space-astronomy--2458531/support.

    26 min
  3. Galactic Influences and Supermoons: Exploring Earth's Crust and Taikonaut Trials

    -4 D.

    Galactic Influences and Supermoons: Exploring Earth's Crust and Taikonaut Trials

    (00:00:00) Galactic Influences and Supermoons: Exploring Earth's Crust and Taikonaut Trials (00:00:42) Earth's geology written in the stars (00:10:30) Taikonauts stranded in space following space junk impact (00:12:38) Biggest Supermoon of the year (00:14:59) The Science Report (00:17:20) Skeptics guide to jogging big foots In this episode of SpaceTime, we delve into fascinating intersections of geology and astronomy that could reshape our understanding of Earth's history and the cosmos. Earth's Geology Written in the Stars A groundbreaking study reveals a compelling connection between the structure of our Milky Way galaxy and the evolution of Earth's crust. Researchers from Curtin University have found that meteorite impacts, influenced by the solar system's journey through the galaxy, have played a significant role in shaping our planet's geology. The episode explores how ancient zircon crystals are providing a unique archive of Earth's interactions with the galaxy, suggesting that astrophysical processes may have directly influenced the continents beneath our feet and the conditions that made life possible. Taikonaut Stranded in Space In a dramatic turn of events, three Chinese taikonauts are stranded in orbit after their Shenzhou 20 spacecraft was struck by suspected space junk just hours before their scheduled return to Earth. This segment discusses the implications of the impact, the ongoing assessments by mission managers, and the potential need for a replacement capsule to ensure the crew's safe return. The episode also reflects on past incidents involving space debris and the measures taken to protect the Tiangong Space Station. The Biggest Supermoon of the Year Skywatchers around the globe were treated to the biggest supermoon of the year, appearing 7% larger and 30% brighter than a typical full moon. This segment explains the science behind the phenomenon, including the moon's elliptical orbit and its impact on tides. We also discuss how the term "supermoon" became popularised and the frequency of such lunar events, with several more supermoons on the horizon. www.spacetimewithstuartgary.com ✍️ Episode References Physical Review https://journals.aps.org/pr/ Nature https://www.nature.com/ Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-your-guide-to-space-astronomy--2458531/support. Earth's Geology Written in the Stars Taikonaut Stranded in Space The Biggest Supermoon of the Year Earth's Geology Written in the StarsTaikonaut Stranded in SpaceThe Biggest Supermoon of the Year

    21 min
  4. Galactic Rhythms and Supermoon Spectacles| SN132, 133 & 134

    -6 D. • KUN FOR ABONNENTER

    Galactic Rhythms and Supermoon Spectacles| SN132, 133 & 134

    SpaceTime S28E132 S28E133 S28E134 w/c November 10, 2025 Space, Astronomy and Science Podcast. SpaceTime Series 28 Episode 132 *Earth's geology written in the stars A new study has uncovered a striking link between the structure of our Milky Way galaxy and the evolution of planet Earth's crust. *Taikonauts stranded in space following space junk impact Three Chinese taikonauts are stranded in orbit after suspected space junk hit their Shenzhou-20 spacecraft just hours before it was slated to undock from China’s Tiangong space station and return to Earth. *Biggest Supermoon of the year Sky watchers have enjoyed a spectacular perigee full moon. The biggest so called Supermoon of the year appeared to be 7 percent larger and 30 percent brighter than the average full moon. *The Science Report Warnings that Australian marsupials are being heavily contaminated with synthetic forever chemicals. Ageing populations set to fuel increased rates of antibiotic-resistant bloodstream infections. Up to 59% of Antarctic ice shelves at risk of disappearing by 2300. Skeptics guide to jogging big foots. SpaceTime Series 28 Episode 133 *More confirmation that the Universe's expansion is slowing A new study has confirmed earlier observations that the universe’s rate of expansion out from the big bang 13.8 billion years ago is slowing down. *First glimpse of the Sun’s polar magnetic field in motion Astronomers have had their first glimpse of the Sun’s south polar magnetic field in motion. *Space Weather events ramping up Astronomers are recording increased levels of Solar Storm activity right now with multiple X-class and strong M-class solar flares erupting from the Sun. *The Science Report The Hektoria Glacier on the Antarctic Peninsula retreated by at least eight kilometres in just two months. Kids who spend a lot of time on screens less likely to do well in primary or elementary school tests AI still unable to tell when someone is expressing a factually untrue belief. Alex on Tech NEO the humanoid housekeeper has arrived. SpaceTime Series 28 Episode 134 *Have astronomers finally seen the universe’s first stars Astronomers believe they may have finally detected some of the very first stars to shine in the universe. *Hidden secrets about the Moon and the asteroid Vesta Two separate NASA studies have revealed some fascinating hidden secrets about the Earth’s Moon and the Main Belt asteroid Vesta. *Euclid peers deep into a stellar nursery full of baby stars The European Space Agency's Euclid space telescope has peered through the dusty veil of the mysterious interstellar gas and dust nebula in the dark cloud LDN-1641 revealing a stellar nursery filled with a multitude of shimmering baby stars. *The Science Report The link between a person's IQ at age 18 and their risk of developing alcohol use disorder. The bamboo-based plastic strong enough to be used for industrial purposes. Claims a natural sweetener derived from the Stevia plant, could help improve hair loss treatment. Skeptics guide to flat earthers falling flat on their face again. https://spacetimewithstuartgary.com https://www.bitesz.com/show/spacetime/ This week’s guests include: Professor Chris Kirkland from Curtin University 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 discounts and bonuses are great!

    1 t 5 min
  5. Phosphine Mysteries and Lunar Returns: Unveiling Secrets of Wolf 1130C and the Moon

    8. NOV.

    Phosphine Mysteries and Lunar Returns: Unveiling Secrets of Wolf 1130C and the Moon

    In this episode of SpaceTime, we explore remarkable discoveries and hypotheses that could redefine our understanding of planetary atmospheres and our journey back to the Moon. Phosphine Discovery in Brian Dwarf Wolf 1130C For the first time, astronomers have detected phosphine in the atmosphere of the brown dwarf Wolf 1130C, raising intriguing questions about its presence and the chemistry of such celestial bodies. This discovery, reported in the journal Science, highlights the significance of phosphorus as a potential biosignature for life and challenges previous theories regarding the abundance of phosphine in other brown dwarfs and gas giants. The episode delves into the implications of this finding and what it means for our understanding of phosphorus chemistry in the universe. A New Hypothesis for Planetary Water Formation A groundbreaking hypothesis suggests that some planets may produce water during their formation through reactions between rocks and hydrogen under extreme pressure. This new perspective, discussed in the journal Nature, could explain the presence of liquid water on exoplanets located close to their host stars, challenging traditional views of water's origins. The episode examines the laboratory experiments that led to this hypothesis and its potential impact on our understanding of planetary habitability. Preparing for Humanity's Return to the Moon As NASA gears up for the Artemis 2 mission, which aims to send humans around the Moon, we discuss the significance of returning to the lunar south pole. This area is believed to contain more water than any other region on the Moon, making it a crucial target for future exploration. The episode highlights the advancements in technology and international collaboration that will pave the way for a sustained human presence on the Moon, furthering our exploration of the solar system. www.spacetimewithstuartgary.com ✍️ Episode References Science https://www.sciencemag.org/ Nature https://www.nature.com/ Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-your-guide-to-space-astronomy--2458531/support. Phosphine Discovery in Brian Dwarf Wolf 1130C A New Hypothesis for Planetary Water Formation Preparing for Humanity's Return to the Moon

    23 min
  6. Stellar Giants and Cosmic Mysteries: The Most Massive Black Hole Merger Yet

    5. NOV.

    Stellar Giants and Cosmic Mysteries: The Most Massive Black Hole Merger Yet

    In this episode of SpaceTime, we dive into groundbreaking astronomical discoveries that challenge our understanding of the universe. The Most Massive Stellar Black Hole Merger Ever Observed Astronomers have detected the most massive stellar black hole merger to date, cataloged as GW23 1123, which resulted in a black hole with a staggering mass of 225 times that of our Sun. This episode discusses the implications of this merger, observed by the LIGO Virgo Collaboration, and how it pushes the boundaries of current theories on black hole formation. The rapid spinning of the resulting black hole raises intriguing questions about the processes that lead to such massive objects in the cosmos. Unraveling the Mystery of Dark Matter Can radio telescopes and NASA's IMAP mission provide answers to the enigma of dark matter? New research suggests that during the cosmic dark ages, dark matter clumped together, pulling in hydrogen gas that emitted powerful radio waves. This segment explores how these signals could potentially illuminate the properties of dark matter, which remains one of the biggest mysteries in astrophysics. Navigating the Heliosphere with IMAP NASA's Interstellar Mapping and Acceleration Probe (IMAP) is on a mission to study the heliosphere, the protective bubble created by the solar wind. As it travels towards its operational position, IMAP will provide unprecedented insights into the interactions between the solar wind and interstellar space, enhancing our understanding of space weather and its effects on our planet and future space exploration. www.spacetimewithstuartgary.com ✍️ Episode References Nature Astronomy https://www.nature.com/natureastronomy/ Proceedings of the National Academy of Sciences https://www.pnas.org/ Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-your-guide-to-space-astronomy--2458531/support. The Most Massive Stellar Black Hole Merger Ever Observed Unraveling the Mystery of Dark Matter Navigating the Heliosphere with IMAP

    30 min
  7. Interstellar Comet 3I Atlas and Hidden Ice: Unraveling Mysteries of Water and Galaxies

    4. NOV.

    Interstellar Comet 3I Atlas and Hidden Ice: Unraveling Mysteries of Water and Galaxies

    In this episode of SpaceTime, we explore a trio of intriguing astronomical phenomena that are reshaping our understanding of the cosmos. Interstellar Comet 3I Atlas: A Close Encounter Interstellar comet 3I Atlas has reached its perihelion, passing closest to the Sun without any signs of alien life forms, despite wild media speculation. This episode discusses how the comet maintained its expected trajectory and velocity, while also revealing groundbreaking findings from NASA's Swift Space Telescope, which detected ultraviolet signatures of water from the comet, providing new insights into the chemistry of interstellar objects and their potential to harbour the building blocks of life. A Colossal Gas Bridge Between Dwarf Galaxies Astronomers have discovered a massive bridge of neutral hydrogen gas linking two dwarf galaxies, NGC 4532 and DDO 137, located approximately 53 million light years away. This remarkable structure spans an astonishing 185,000 light years and is accompanied by a vast tail of gas extending 1 million light years. The findings shed light on how galaxies interact and evolve, particularly in dense environments like the Virgo Cluster, and offer crucial insights into the dynamics of galactic gas and star formation. Volcanic Eruptions and Hidden Ice on Mars A new study suggests that explosive volcanic eruptions on ancient Mars may have transported water ice to the equatorial regions of the Red Planet. Using computer modelling, researchers propose that water vapour released during these eruptions could have frozen in the Martian atmosphere, leading to the accumulation of significant ice deposits. This discovery could have profound implications for future human exploration of Mars, as it raises questions about the availability of water resources in unexpected locations. www.spacetimewithstuartgary.com ✍️ Episode References Astrophysical Journal Letters https://iopscience.iop.org/journal/2041-8205 Nature Communications https://www.nature.com/naturecommunications/ Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-your-guide-to-space-astronomy--2458531/support. Interstellar Comet 3I Atlas: A Close Encounter A Colossal Gas Bridge Between Dwarf Galaxies Volcanic Eruptions and Hidden Ice on Mars

    25 min
  8. Interstellar Water and Cosmic Bridges: Unraveling the Mysteries of Comet 3I ATLAS and Dwarf Galaxies| S28E129, 130 & 131

    3. NOV. • KUN FOR ABONNENTER

    Interstellar Water and Cosmic Bridges: Unraveling the Mysteries of Comet 3I ATLAS and Dwarf Galaxies| S28E129, 130 & 131

    SpaceTime S28E129 S28E130 S28E131 w/c November 3, 2025 Space, Astronomy and Science Podcast. SpaceTime Series 28 Episode 129 *Interstellar Comet 3I Atlas passes behind the Sun, but no sign of alien life Interstellar Comet 3I Atlas has reached its perihelion marking its closest position to the Sun. *Dwarf galaxies linked by a massive intergalactic bridge Astronomers have discovered a colossal bridge of neutral hydrogen gas linking two dwarf galaxies *Volcanic eruptions may have delivered hidden ice to Mars's equator A new study suggests explosive volcanic eruptions on ancient Mars may have transported water ice to equatorial regions of the red planet. *The Science Report Moscow says it’s successfully tested a new nuclear powered cruise missile. Earth is now hotter than at any point in the past 125,000 years. Palaeontologists have identified a "nanotyrannus", or the dwarf tyrannosaurus, Skeptics guide to whether vegans have psychic abilities. SpaceTime Series 28 Episode 130 *The most massive stellar black hole merger ever seen Astronomers have seen the most massive stellar mass black hole merger ever detected by gravitational wave observatories. *Can the mystery of dark matter be unravelled using radio telescopes A new study from Tel Aviv University has predicted, for the first time, the groundbreaking results that can be obtained from detecting radio waves coming to us from the early Universe. *NASA’s IMAP Mission to Study Boundaries of Our Home in Space NASA mission managers say its new Interstellar Mapping and Acceleration Probe – IMAP – is continuing on course with all systems nominal. *The Science Report A possible association between autism and exposure to air pollution during pregnancy. A new study shows human activity has extended the fire season in nearly all regions on Earth. A new device using static electricity on your clothing could help you chat to AI systems. #Alex on Tech Does AI value human life. SpaceTime Series 28 Episode 131 *Detection of phosphine in a brown dwarf atmosphere raising questions Astronomers have for the first time found phosphine in the atmosphere of the brown dwarf Wolf 1130C. *A new hypothesis to explain how some planets get their water A new study claims that some planets may produce water during their formation through reactions between their rocks and hydrogen under pressure. *Preparing for our return to the Moon Half a century ago humans stepped on the Moon for the first time in a set of sorties that awed the world – now they’re finally preparing to go back. *The Science Report Teens who start using cannabis before age 15 are more likely to have mental and physical health issues. The world's major electric car makers will need to rely on lithium imports as soon as 2029. How to make chocolate taste even better. Skeptics guide to the of Princess Diana's ghost https://spacetimewithstuartgary.com https://www.bitesz.com/show/spacetime/ This week’s guests include: Professor Lister Staveley-Smith from the University of Western Australia node at the International Centre for Radio Astronomy Research. IMAP Project Scientist Matina Gkioulidou from the Johns Hopkins Applied Physics Laboratory IMAP Deputy Principal Investigator Eric Christian from NASA IMAP Principal Investigator Dave McComas from Princeton University 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 discounts and bonuses are incredible! And it’s risk-free with Nord’s 30-day money-back guarantee! ✌

    1 t 14 min
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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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