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SpaceTime with Stuart Gary

SpaceTime with Stuart Gary

Stuart Gary 1000 Episodes Jul 22, 2026

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.

Episodes

Mars, Moon, and Charon: A Cosmic Exploration of Our Celestial Neighbours
Mars, Moon, and Charon: A Cosmic Exploration of Our Celestial Neighbours Jul 22, 2026 1194 SpaceTime Series 29 Episode 87 Ancient impacts display the red planet’s past history A new study has shown how ancient Martian rocks exposed on the rim of Jezero Crater are preserving a 3.9-billion-year-old “weather report” from the solar system’s most dynamic era. Understanding of the Moon’s regolith for human habitation Scientists have mapped out the thickness of the Moon’s regolith, the laye
Asteroid Impacts and Alien Chemistry: Unveiling Earth's Cosmic History
Asteroid Impacts and Alien Chemistry: Unveiling Earth's Cosmic History Jul 20, 2026 1380 SpaceTime Series 29 Episode 86 The asteroid collision that changed life on Earth forever Astronomers have linked a massive collision in the main asteroid belt to a huge meteor bombardment in the inner solar system that may have changed life on Earth. Alien chemistry discovered in meteorite that hit New Jersey home Scientists have discovered high concentrations of salt in briny fluids that could po
Nuclear Watchdogs: Detecting Weapons in Space and NASA's Swift Rescue Mission
Nuclear Watchdogs: Detecting Weapons in Space and NASA's Swift Rescue Mission Jul 17, 2026 1163 SpaceTime Series 29 Episode 85 Detecting nuclear weapons in space New modelling says small cube-sat sized spacecraft not much bigger than a fridge could be used to detect the presence of nuclear weapons on satellites in space. NASA’s rescue mission to save the Swift space telescope reaches orbit NASA’s Swift re-boost rescue mission is finally on its way to intercept the gamma ray space telescope a
Cosmic Discoveries: Japan's Asteroid Encounter and the Life Potential of Europa
Cosmic Discoveries: Japan's Asteroid Encounter and the Life Potential of Europa Jul 15, 2026 1690 SpaceTime Series 29 Episode 84 Japan swoops past a cosmic snowman shaped asteroid Japan’s Hayabusa2 spacecraft has just swooped past a tiny asteroid in deep space that’s shaped like a snow man. Revealing the secrets of the ice moon Europa A new study has shown that the Jovian Ice Moon Europa is reflecting radio signals in a strange unexpected way. What happens to Earth when the Sun dies A new stu
Earth's Ancient Impact Revealed: Dating the Oldest Crater and China's Cosmic Quest
Earth's Ancient Impact Revealed: Dating the Oldest Crater and China's Cosmic Quest Jul 13, 2026 1850 SpaceTime Series 29 Episode 83 Earth’s oldest known asteroid impact crater dated in Western Australia Scientists have determined the most precise age yet for the oldest known impact crater on Earth finding it to be some 3.024 billion years old.   A Chinese spacecraft has just reached Earth’s second moon China’s Tianwen-2 spacecraft has arrived at a temporary second moon orbiting Earth -- although
Mars to Earth: China's Ambitious Sample Return Mission and Cosmic Anomalies
Mars to Earth: China's Ambitious Sample Return Mission and Cosmic Anomalies Jul 10, 2026 1141 SpaceTime Series 29 Episode 82 China’s Mars sample return mission set for 2028 China says its planning to launch a Mars sample return mission in two years bringing back at least 500 grams of Martian regolith by 2031. Is science wrong about the universe The universe should look the same in all directions on the large cosmic scale, but new data based on dark energy observations are suggesting other
How a Passing Star Redirected Comets and Redefined Our Milky Way Map
How a Passing Star Redirected Comets and Redefined Our Milky Way Map Jul 8, 2026 1415 Sponsor Link:This episode of SpaceTime is brought to you by Inconi. Take back your privacy and data online with Incogni. Check out our special offer: www.incogni.com/stuartgarySpaceTime Series 29 Episode 81How a passing star redirected comets to the inner solar systemA fascinating new study reveals how a passing star, HD 7977, may have altered the trajectory of comets from the Oort Cloud, sending
The Big Freeze: Exploring Asteroid Impacts and the Mysteries of Uranus and Neptune
The Big Freeze: Exploring Asteroid Impacts and the Mysteries of Uranus and Neptune Jul 6, 2026 1527 SpaceTime Series 29 Episode 80 Did ancient asteroid impacts prevent Earth’s continents from forming A new study suggests the barrage of asteroid impacts that slammed into the ancient Earth during the Hadean Eon between 4.6 and four billion years ago may have prevented the formation of the planet’s first continents. Could the ice giants Uranus and Neptune really be magma worlds A new study suggest
Stellar Forensics: How Neutron Stars Forge Heavy Elements
Stellar Forensics: How Neutron Stars Forge Heavy Elements Jul 3, 2026 2307 Sponsor Link:This episode of SpaceTime is brought to you with the support of Incogni. If you worry about where your online data is going, you need Incogni. Worry no more. Check out our special SpaceTime offer (with 30 day money back guarantee) by visiting https://www.incogni.com/stuartgarySpaceTime Series 29 Episode 79 How Neutron Stars make heavy elements Physicists have achieved a significant b
Cosmic Dawn: Unveiling the Galaxy MXDFZ 4.4 and the Secrets of Reionization, Comet 3I ATLAS Origins
Cosmic Dawn: Unveiling the Galaxy MXDFZ 4.4 and the Secrets of Reionization, Comet 3I ATLAS Origins Jul 1, 2026 1263 SpaceTime Series 29 Episode 78 Discovering how the cosmic dark ages ended Astronomers have discovered an early galaxy during the Era of Reionization –when the universe was transformed from the cosmic dark ages – when the cosmos went from being opaque to becoming transparent like it is today. New clues about the origins of interstellar comet 3i Atlas Astronomers using NASA’s Webb space telescope ha
BepiColombo's Mercury Milestone: Navigating to the Solar System's Smallest Planet, Solar Secrets Unveiled
BepiColombo's Mercury Milestone: Navigating to the Solar System's Smallest Planet, Solar Secrets Unveiled Jun 29, 2026 1731 SpaceTime Series 29 Episode 77 BepiColombo mission finally reaches Mercury space After eight years of powered flight towards the planet Mercury, mission managers have finally turned off the BepiColombo spacecraft’s propulsion engines in preparation for planetary orbit insertion. Is our Sun changing A new study claims the Sun has been mysteriously changing over the last forty years. Strange new ty
Supernova Secrets: Uncovering a Stellar Explosion Near the Milky Way's Heart, Quantum Insights into the Big Bang
Supernova Secrets: Uncovering a Stellar Explosion Near the Milky Way's Heart, Quantum Insights into the Big Bang Jun 26, 2026 1462 SpaceTime Series 29 Episode 76 A possible supernova remnant discovered in the galactic centre Astronomers may have discovered a supernova remnant near the supermassive black hole at the centre of our galaxy. A new quantum view of Big Bang A new study could change what science knows about the Big Bang and the earliest moments of cosmic history. Work begins on new Western Australian ground station f

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