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SpaceTime: Your Guide to Space & Astronomy

Stuart Gary
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  • ASTRONOMY
  • UPDATED WEEKLY

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. NISAR Launch: Unveiling Earth's Secrets Through Radar

    23 HR AGO

    NISAR Launch: Unveiling Earth's Secrets Through Radar

    In this episode of SpaceTime, we journey through the latest advancements in space exploration and cosmology, featuring a groundbreaking radar mission, a new hypothesis on the universe's origins, and updates on the International Space Station. NISAR: A New Era in Earth Observation The Indian Space Research Organisation (ISRO) has successfully launched the NISAR satellite, a joint mission with NASA that promises to revolutionise our understanding of Earth's dynamic systems. This advanced synthetic aperture radar satellite will monitor changes in forests, wetlands, and ice-covered surfaces with unprecedented detail, providing crucial data for disaster response, infrastructure management, and climate change studies. With its ability to see through clouds and operate day and night, NISAR will deliver vital insights into the planet's movements and environmental changes every 12 days, enhancing our preparedness for natural hazards. A New Hypothesis on the Universe's Origins In a significant shift in cosmological theory, scientists have proposed a new model that explains the universe's early moments without relying on speculative elements. This revolutionary hypothesis, reported in the journal Physical Review Research, suggests that natural quantum fluctuations in a state known as de Sitter space could account for the density differences that led to the formation of galaxies and stars. By eliminating arbitrary parameters, this model offers a clearer understanding of the cosmos and poses fundamental questions about our existence and origins. Russia's Commitment to the International Space Station In a surprising announcement, Russia has confirmed its intention to remain a partner in the International Space Station (ISS) project until at least 2028, despite previous threats to withdraw. This decision comes amid ongoing geopolitical tensions and technical challenges within the Russian segment of the ISS. As the global space community continues to evolve, Russia's commitment ensures continued collaboration in low Earth orbit, even as plans for an independent Russian space station progress. www.spacetimewithstuartgary.com ✍️ Episode References Physical Review Research https://journals.aps.org/prresearch/ NASA NISAR Mission https://www.nasa.gov/nisar Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.

    18 min
  2. Planetary Demise - Tracking the Death Spiral of TOI 2109b

    2 DAYS AGO

    Planetary Demise - Tracking the Death Spiral of TOI 2109b

    In this episode of SpaceTime, we delve into the cosmic drama unfolding in our universe, featuring a doomed exoplanet, new revelations about Mars, and the latest crew aboard the International Space Station. The Death Spiral of TOI 2109b Astronomers are closely monitoring the death spiral of TOI 2109b, an exoplanet located over 870 light-years away. This gas giant, nearly five times the mass of Jupiter, completes an orbit around its host star in just 16 hours, making it the closest hot Jupiter discovered to date. Researchers from Macquarie University have found that the planet's orbit is decaying, leading to three potential end scenarios: being torn apart by tidal forces, plunging into its host star, or losing its gaseous envelope to intense radiation. These findings provide valuable insights into planetary evolution and the fate of gas giants in close orbits. New Insights into Mars's Ancient Surface A recent study has identified a new type of iron sulfate on Mars, suggesting significant geothermal and chemical activity on the planet's surface. Researchers have characterized this uncommon mineral, which may represent a new type due to its unique crystalline structure. The discovery sheds light on how heat, water, and chemical reactions have shaped Mars, and indicates that the planet may have been more geologically active than previously thought. This research enhances our understanding of Mars's potential to have supported life in its past. New Crew Arrives at the International Space Station NASA has successfully delivered a new crew to the International Space Station aboard a SpaceX Dragon capsule. The crew, consisting of two Americans, a Russian, and a Japanese astronaut, will replace colleagues who have been aboard since March. As NASA considers extending crew stays from six to eight months to reduce costs, the new team is set to contribute to ongoing research and operations in low Earth orbit. www.spacetimewithstuartgary.com ✍️ Episode References Astrophysical Journal https://iopscience.iop.org/journal/1538-4357 Nature Journal https://www.nature.com/nature/ NASA's International Space Station https://www.nasa.gov/mission_pages/station/main/index.html Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support. 00:00 This is space Time Series 28, Episode 97 for broadcast on 13 August 2025 00:42 Astronomers are tracking the death spiral of a doomed planet more than 870 light years away 12:06 ToI 2109 is one of the most interesting systems that we've got 17:06 Scientists have identified a new type of iron sulfate on the Red Planet 23:47 NASA has delivered four new crew members to the International Space Station aboard SpaceX Dragon 25:10 New study claims consuming three fries a week increases risk of developing type 2 diabetes 26:13 Google about to offer AI study tools to college students for free 29:53 You've got to check for updates on all your Apple devices

    32 min
  3. Cosmic Monsters and Martian Rivers

    4 DAYS AGO

    Cosmic Monsters and Martian Rivers

    In this episode of SpaceTime, we explore groundbreaking discoveries and ambitious plans in the realm of space exploration. The Most Distant Black Hole: Casper's Lidz 9 Astronomers have identified the most distant black hole ever observed, known as Casper's Lidz 9, dating back 13.3 billion years to a time when the universe was only half a billion years old. This supermassive black hole, weighing in at approximately 300 million solar masses, raises intriguing questions about its rapid growth in the early universe. The findings, published in the Astrophysical Journal, provide a unique opportunity to study the structure and evolution of galaxies during this enigmatic period, with implications for our understanding of black hole formation. New Insights into Ancient Martian Water Recent research suggests that Mars was even wetter than previously believed. A study presented at the Royal Astronomical Society's national meeting examined over 1500 kilometres of ancient riverbeds in the Nochesterra region, indicating that flowing water was widespread during the Noche and Hesperian transition around 3.7 billion years ago. These findings challenge existing theories about Mars's dry history and suggest a more complex and active planet, potentially providing a more hospitable environment for ancient life. Nuclear Reactors for Moon and Mars Bases The United States has unveiled plans to develop nuclear reactors to power future bases on the Moon and Mars, with the first plant expected to launch by the end of the decade. This initiative aims to support sustained human presence on these celestial bodies, addressing energy needs that solar power cannot fulfil. The reactors will provide essential electricity for life support, scientific equipment, and resource utilisation, marking a significant step in the ongoing space race. www.spacetimewithstuartgary.com ✍️ Episode References Astrophysical Journal https://iopscience.iop.org/journal/1538-4357 NASA's Artemis Program https://www.nasa.gov/specials/artemis/ Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.

    21 min
  4. Cosmic Giants: The Discovery of the Most Distant Black Hole and Mars' Wet Past | S28E96, 97 & 98

    5 DAYS AGO • SUBSCRIBERS ONLY

    Cosmic Giants: The Discovery of the Most Distant Black Hole and Mars' Wet Past | S28E96, 97 & 98

    SpaceTime S28E96 S28E97 S28E98 w/c August 11th, 2025 Space, Astronomy and Science Podcast. SpaceTime Series 28 Episode 96 *A monster at the dawn of time Astronomers have detected the most distant black hole ever seen. *New data suggests Mars was even wetter than scientists thought A new study of ancient Martian river systems suggests the red planet was even wetter than scientists has previously thought *NASA to place nuclear reactors on the Moon and Mars The United States has announced plans to develop nuclear reactors to supply power to its future bases on the Moon and Mars. *The Science Report New mRNA vaccines to target HIV-AIDS. Scientists have finally discovered the origins of potatoes. Study shows that cockatoos have up to 30 different dance moves. Skeptics guide to why some people are more easily fooled. SpaceTime Series 28 Episode 97 *Astronomers track a doomed planet's death spiral Astronomer are tracking the death spiral of a doomed planet 870 light years away. *Fresh clues about the red planet’s past Scientists have identified a type of iron sulphate on Mars that may represent a brand-new mineral. *A new crew arrives aboard the International Space Station NASA has delivered four fresh crew members to the International Space Station aboard a SpaceX Dragon Capsule. *The Science Report Three servings of fries a week linked to a 20% increased risk of developing type 2 diabetes. Study shows your mother made you fat. Claims including a few Emojis in your texting could make your relationships stronger. Alex on Tech: Google AI for Students. SpaceTime Series 28 Episode 98 *The joint American Indian NISAR Radar Mission Lifts Off ISRO – the Indian Space Research Organization has successfully launched a new joint American Indian advanced synthetic aperture radar NISAR satellite into Earth orbit. *A new hypothesis to understand the origins of the Universe Scientists have developed a revolutionary new hypothesis to try to understand the origins of the Universe without the need of speculative elements. *Russia to remain with the International Space Station until 2028 The Russian Federal Space Agency Roscosmos will now remain with the International Space Station until 2028. *The Science Report Walking just 14 steps a minute faster could help older people improve endurance and aerobic capacity. New 3D-printed titanium that’s a third cheaper than commonly used titanium alloys. The first evidence of multispecies dinosaur herding behaviour. Skeptics guide to the five sure signs you’ve been probed by aliens. https://spacetimewithstuartgary.com https://www.bitesz.com/show/spacetime/ This week’s guests include: Jaime Alvarado-Montes from Macquarie University US transportation secretary and acting NASA chief Sean Duffy NISAR Project Scientist Paul Rosen from NASA’s Jet Propulsion Laboratory NISAR Science co-lead Deepak Putrevu from ISRO - the Indian Space Research Organisation NISAR Deputy Project Manager Wendy Edelstein from NASA’s Jet Propulsion Laboratory NISAR Deputy Project Director Chaitra Rao from ISRO - the Indian Space Research Organisation 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! ✌

    1h 7m
  5. Martian Glaciers Revealed: Unveiling Water Ice and the Hunt for Intermediate Mass Black Holes

    8 AUG

    Martian Glaciers Revealed: Unveiling Water Ice and the Hunt for Intermediate Mass Black Holes

    In this episode of SpaceTime, we uncover intriguing discoveries about Mars, the cosmos, and the latest advancements in space technology. Martian Glaciers: Pure Water Ice Recent research reveals that Martian glaciers are composed of over 80% pure water ice, challenging previous assumptions that they were primarily rocky. This groundbreaking study, led by Yuval Steinberg from the Weizmann Institute, utilized standardized measurements to analyze the dielectric properties of these glaciers, providing a clearer understanding of their composition. The findings not only enhance our knowledge of Martian geology but also have significant implications for future manned missions, as these glaciers could serve as vital water sources for astronauts. Discovery of an Intermediate Mass Black Hole NASA's Hubble Space Telescope and Chandra X-Ray Observatory have identified a rare intermediate mass black hole, known as NGC6099HLX1, actively consuming a star. This black hole, located approximately 450 million light-years away, resides in a compact star cluster and exhibits extreme luminosity during its tidal disruption event. The discovery sheds light on the formation of black holes and their role in galactic evolution, providing crucial insights into the elusive intermediate mass category that bridges stellar and supermassive black holes. United States Space Force's X37B Mission The United States Space Force is gearing up for the eighth mission of its Boeing X37B space shuttle, set to launch from Cape Canaveral Space Force Base. This mission will test advanced technologies, including a high-bandwidth inter-satellite laser communications system and a cutting-edge quantum inertial sensor. The X37B's unique capabilities allow it to conduct classified operations while remaining difficult to track, highlighting its significance in modern space operations. www.spacetimewithstuartgary.com ✍️ Episode References Icarus Journal https://www.journals.elsevier.com/icarus Astrophysical Journal https://iopscience.iop.org/journal/1538-4357 NASA Hubble Space Telescope https://hubblesite.org/ Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.

    22 min
  6. Galactic Secrets Uncovered: The Milky Way's Orphan Galaxies and Parker Solar Probe's Stunning Solar Images

    6 AUG

    Galactic Secrets Uncovered: The Milky Way's Orphan Galaxies and Parker Solar Probe's Stunning Solar Images

    In this episode of SpaceTime, we explore exciting new findings about our galaxy, the latest achievements of NASA's Mars Curiosity rover, and groundbreaking images of the Sun captured by the Parker Solar Probe. Milky Way's Hidden Satellites Recent research suggests that the Milky Way may host up to 100 previously undetected satellite galaxies. Using advanced supercomputer simulations and mathematical modeling, astronomers have identified the existence of these faint dwarf galaxies, which could provide crucial support for the Lambda cold dark matter model. Currently, only 60 companion galaxies are confirmed, but with new telescopes like the Vera Rubin Observatory, the search for these elusive satellites is set to expand, potentially reshaping our understanding of the universe's structure. Curiosity Rover Reaches New Heights NASA's Mars Curiosity rover has made significant progress in its exploration of Mount Sharp, revealing intricate geological formations known as boxwork. This unique terrain, shaped by ancient groundwater processes, offers valuable insights into the Red Planet's history. Curiosity has been utilizing its advanced instruments to analyze the composition of the Martian surface and conduct atmospheric observations, marking a new phase in its mission to uncover the secrets of Mars. Parker Solar Probe's Record-Breaking Images In a groundbreaking achievement, NASA's Parker Solar Probe has captured the closest images of the Sun ever taken. These stunning observations, made during a recent pass through the solar corona, are helping scientists understand solar phenomena and their impact on space weather. The high-resolution images reveal important details about the solar wind and coronal mass ejections, providing insights that could improve predictions of solar activity and protect technology on Earth. www.spacetimewithstuartgary.com ✍️ Episode References Nature Astronomy https://www.nature.com/natureastronomy/ NASA Mars Curiosity Mission https://mars.nasa.gov/msl/ Parker Solar Probe https://www.nasa.gov/content/parker-solar-probe Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support. 00:00 New study says Milky Way could have far more satellite galaxies than previously thought 00:47 Our Milky Way galaxy could have more satellite galaxies surrounding it than previously predicted 05:37 NASA's Mars Curiosity rover reaches new heights exploring boxwork terrain on Mount Sharp 09:08 NASA's Parker Solar Probe captured stunning new images of the solar atmosphere 18:40 A new study warns that hail storms could hit Australian cities harder due to climate change

    27 min
  7. ERIS 1: Australia's Orbital Rocket Launch Attempt and the Cosmic Origins of Life

    4 AUG

    ERIS 1: Australia's Orbital Rocket Launch Attempt and the Cosmic Origins of Life

    In this episode of SpaceTime, we delve into significant developments in space exploration, from Australia's latest rocket launch attempt to groundbreaking theories about the origins of life. Australia's ERIS 1 Rocket Launch: A Learning Experience In a dramatic turn of events, Gilmour Space's ERIS 1 rocket experienced a failure just seconds after liftoff, marking Australia's first orbital rocket launch in years. Despite the setback, CEO Adam Gilmour emphasizes the lessons learned from the test flight, which will inform the design and operation of future launches. The rocket's ascent was initially promising, but engine failures led to a crash shortly after clearing the launch tower. Fortunately, no injuries or environmental damage occurred, and the mission provided valuable data that will enhance the next attempt. Life's Origins: A Cosmic Perspective A new study suggests that the building blocks of life may have originated in outer space rather than on Earth. Using the ALMA radio telescope, astronomers detected complex organic molecules in the protoplanetary disk of the protostar UH V883 Orionis. These findings indicate that essential compounds, such as ethylene glycol and glycolonitrile, are not only present in various cosmic environments but may also be the precursors to amino acids and other vital biological components. This research supports the notion that the seeds of life are widespread throughout the universe. Boeing's Starliner Delays Continue Boeing's Starliner spacecraft faces further delays, now pushed back to at least 2026 before it can carry humans into space. Ongoing technical issues have plagued the project, including helium leaks and thruster control problems. NASA is working closely with Boeing to address these challenges, but the timeline for crewed missions remains uncertain as SpaceX continues to lead in transporting astronauts to the International Space Station. www.spacetimewithstuartgary.com ✍️ Episode References Astrophysical Journal Letters https://iopscience.iop.org/journal/1538-4357 NASA's Commercial Crew Program https://www.nasa.gov/exploration/commercial/crew/index.html Gilmour Space https://gilmourspace.com/ Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support. 00:00 A new study says the evolution of life may well have origins in outer space 00:47 Gilmour Space's Ares 1 orbital rocket crashed two seconds after launch 10:37 A new study says the evolution of life may have origins in outer space 11:28 Astronomers find 17 complex organic molecules in distant planet forming disk 19:35 New study finds images can shape public opinion regardless of true facts 22:06 World Meteorological Organization says megaflash stretched 829km in 2017

    24 min
  8. Martian Clay Chronicles: Uncovering Life's Potential

    1 AUG

    Martian Clay Chronicles: Uncovering Life's Potential

    In this episode of SpaceTime, we embark on a thrilling journey through the cosmos, exploring the potential for life on Mars, a remarkable discovery in the outer solar system, and the crucial mapping of sulfur throughout our galaxy. Searching for Life on Mars A new study reveals that thick layers of clay on Mars could indicate stable environments conducive to life billions of years ago. Researchers have identified that these clay deposits likely formed in standing bodies of water, providing the right conditions for chemical weathering and potentially supporting ancient life. The findings suggest that the balance between water and carbon cycles on Mars may explain the planet's geological history and the absence of carbonate rocks. Lead author Rhianna Moore discusses how these stable terrains could have fostered habitable conditions for extended periods, offering insights into the Red Planet's wet past. Discovery of 2020 VN40: A Distant Cosmic Companion Astronomers have discovered a rare celestial body, 2020 VN40, located far beyond Neptune, moving in perfect synchronicity with the ice giant. This trans-Neptunian object orbits the sun once for every ten orbits Neptune completes, providing new insights into the dynamics of the outer solar system. The discovery, reported in the Planetary Science journal, enhances our understanding of how distant objects interact with Neptune's gravity and offers clues about the solar system's evolution. Mapping Sulfur in the Milky Way A groundbreaking study has mapped the distribution of sulfur across the Milky Way, an essential element for life. Utilizing the CRISM X-Ray Imaging and Spectroscopy mission, scientists have directly measured sulfur in both its gaseous and solid forms within the interstellar medium. The findings shed light on sulfur's role in the cosmos and its potential implications for understanding life's distribution throughout the galaxy. This research marks a significant step in answering fundamental questions about the building blocks of life in the universe. www.spacetimewithstuartgary.com ✍️ Episode References Nature Astronomy https://www.nature.com/natureastronomy/ Planetary Science Journal https://iopscience.iop.org/journal/2632-3338 CRISM Mission https://www.nasa.gov/mission_pages/asteroids/overview/crism.html Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.

    30 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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