SpaceTime with Stuart Gary

SpaceTime with Stuart Gary

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-with-stuart-gary--2458531/support.

Episodes

July 13, 2026 30 mins
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 technic...
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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 otherwise. An ASSASSN reveals its ...
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SpaceTime 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 them cascading into the...
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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 suggests that the solar system...
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SpaceTime Series 29 Episode 79 How Neutron Stars make heavy elements Physicists have achieved a significant breakthrough in understa...
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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 have discovered new...
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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 type of x-ray flare detected in...
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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 for lunar missions Construction has ...
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SpaceTime Series 29 Episode 75 The Moon’s oldest and largest impact crater A new study suggests the Moon’s oldest and largest impact crater – the two and a half thousand kilometre wide South Pole-Aitken basin -- could have excavated material so deep it included parts of the lunar mantle. New clues to how the red planet Mars evolved Scientists have discovered the mineral garnet in a Martian meteorite which may rev...
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SpaceTime Series 29 Episode 74 Why Venus spins backwards A new study suggests that the strange retrograde spin of the planet Venus is the result of a massive impact event. Could Dark Matter explain what’s happening at the centre of our galaxy A new study has failed to rule out Dark Matter as the source of the so called Galactic Center Excess at the heart of the Milky Way galaxy. Trying to solve a meteor cold case Last month ...
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SpaceTime Series 29 Episode 73 The earliest known flickering quasar Astronomers have discovered the earliest known flickering quasar dating back to a time when the universe was just 850 million years...
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SpaceTime Series 29 Episode 72 Our ever-changing Milky Way Galaxy New observations are showing astronomers how our galaxy the Milky Way is being slowly changed through its...
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SpaceTime Series 29 Episode 71 Universe expansion still accelerating after all A new study has confirmed that the universe is continuing to expand at an ever-accelerating rate under the force of dark energy and heading for a cold, dark and empty fate. Mysterious cosmic signals finally explained Astronomers have discovered that dead stars called white dwarfs located in binary systems are a primary source of mysterious signals from d...
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SpaceTime Series 29 Episode 70 *The Small Magellanic Cloud is being ripped apart A new study reveals that the Small Magellanic Cloud, a satellite galaxy of the Milky Way, is slowly being torn apart by ...
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SpaceTime Series 29 Episode 69 *Evidence of planetary destruction in the early solar system Scientists have confirmed a cosmic collision in the early solar system which saw the complete destruction of a planet p...
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SpaceTime Series 29 Episode 68 *How black holes shape the cosmos A new study has revealed how powerful jets generated by black holes shape the universe. *NASA forced to end its MAVEN Mars Mission NASA has been forced to shut do...
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SpaceTime Series 29 Episode 67 *Are we in a cosmic void after all? It’s an hypothesis which has been around for decades and refuses to go away: Are we in a cosmic void? *New study confirms a black hole that formed before its galaxy Astronomers using the Webb Space Telescope have identified a supermassive black hole in the early universe that formed before its host galaxy. *Another win for SpaceX over Boeing NASA has just awar...
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SpaceTime Series 29 Episode 66 *Starship undertakes its 12th test flight The world’s largest and most powerful rocket, the SpaceX super heavy Starship has undertaken its 12th test flight with mixed results. *Massive rocket explosion at Cape Canaveral Blue Origin's latest New Glenn rocket has exploded in a spectacular ball of flame and fire during a static hot fire test at the Cape Canaveral Space Force base in Florida. *How E...
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SpaceTime Series 29 Episode 65 *NASA confirms its moon base plans and first contracts NASA confirms its plans to have humans living on the Moon by 2032. The agency has released the latest draft of its lunar south pole base project and signed its first contracts. *A surprising core reversal deep inside the Earth The European Space Agency has discovered a mysterious flow reversal of Earth liquid iron outer core. *Red dwarf stars dete...
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SpaceTime Series 29 Episode 64 *A new explanation for how stars explode  A new study suggests that neutrino which are some the least massive objects in the universe may trigger some of the biggest explosions in the cosmos – supernovae the explosive death of massive stars which are so bright they can outshine entire galaxies. *Neptune's mysterious moon Nereid A new study suggests the planet Neptune's distant moon Nereid...
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