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.

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Last refreshed: January 27th, 2026 at 12:24 AM ⓘ

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Episodes

The First Supermassive Black Holes

Stream podcast episodes on demand from www.spacetimewithstuartgary.com (mobile friendly). *New clues about the creation of the first supermassive black holesA new study suggests that the very early universe – just after the big bang 13.82 billion years ago – may have seen conditions in which normal star formation was overtaken by the birth of monstrous black holes instead.*Last ditch effort to save OpportunityNASA are sending new sets of commands to try and force its Mars Opportunity rover to re...

Feb 01, 2019•23 min

Some of Earth’s Oldest Rocks Found on the Moon

Stream podcast episodes on demand from www.bitesz.com /spacetime (mobile friendly). *Some of Earth’s oldest rocks found on the MoonSome of the oldest rocks on Earth have been discovered among lunar rock samples brought back to Earth from the Moon.*Scientists finally know the time on SaturnNASA’s Cassini spacecraft has solved another long-standing mystery about the ringed world of Saturn – they’ve worked out how on a Saturnian day is!*A new hypothesis which kills off Planet 9A new study suggests ...

Jan 31, 2019•37 min

08: Are Fast Radio Bursts Generated by Flaring Magnetars?

Stream podcast episodes on demand from www.spacetimewithstuartgary.com (mobile friendly). *Are Fast Radio Bursts generated by flaring magnetars?Scientists have developed a new hypothesis to try and explain mysterious cosmic energy blasts know as Fast Radio Bursts.*Asteroid impact stuns astronomersAstronomers may have just witnessed the collision wreckage left behind by the violent impact of two asteroids in the main asteroid belt just beyond Mars.*Mysterious shifts in Earth’s magnetic polesScien...

Jan 25, 2019•27 min

07: Strange New Phenomenon Cowers Astronomers

Stream podcast episodes on demand from www.spacetimewithstuartgary.com (mobile friendly). *A strange new phenomenon cowers astronomersThe American Astronomical Society’s meeting in Seattle, Washington has been toldscientist are still hotly debating the details of AT2018cow – a strange and powerful explosive phenomenon bright enough to be seen throughout the visible universe.You tube video url: http://spacetimewithstuartgary.tumblr.com/post/181914162703 *A new way of studying mysterious dark matt...

Jan 24, 2019•33 min

06: Brightest Quasar In the Early Universe

Stream podcast episodes on demand from www.spacetimewithstuartgary.com (mobile friendly). This episode of SpaceTime is brought to you by The Great Courses Plus...lifelong learning from the best in their fields. To take up our special free trial offer, just use our URL… www.thegreatcoursesplus.com/space and help support the show while doing yourself a favour. *Brightest quasar in the early universeAstronomers have discovered the brightest object ever seen at a time when the universe was less than...

Jan 18, 2019•24 min

05: A Second Repeating Fast Radio Burst Detected

Stream podcast episodes on demand from www.spacetimewithstuartgary.com (mobile friendly). *A second repeating Fast Radio Burst detectedAstronomers have found another mysterious signal called a Fast Radio Burst which appears to be repeating.*Searching for the Sun’s siblingsA new study searching for the Sun’s siblings has revealed the DNA of more than 340,000 stars in the Milky Way.*Rapid star birth in Magellanic cloudsA new study shows the Large and Small Magellanic clouds are forming new stars a...

Jan 16, 2019•37 min

04: The First Clue To The Makeup of Dark Matter

Stream podcast episodes on demand from www.spacetimewithstuartgary.com (mobile friendly). This episode of SpaceTime is brought to you by The Great Courses Plus. Use our special URL to take up our special offer of free access to the entire library of lectures. Just go to www.thegreatcoursesplus.com/space and help support the show. Thank you.*The first clue to the makeup of dark matterThere’s evidence that star formation can heat up and move dark matter around.*OSIRIS-REx enters orbit around aster...

Jan 11, 2019•29 min

03: New Horizon’s Reveals A New Kind of World

Stream podcast episodes on demand from www.spacetimewithstuartgary.com (mobile friendly). *New Horizon’s reveals a new kind of worldNASA’s New Horizon’s spacecraft has successfully completed its encounter with Ultima Thule – which at more than 6.6 billion kilometres – is the most distant world ever explored.*Milky Way about to collide with the Large Magellanic Cloud galaxy Astronomers claim a nearby galaxy is hurtling towards the Milky Way on a collision course that could fling our solar system ...

Jan 09, 2019•27 min

02: Fuzz On An Expanding Bubble?

Stream podcast episodes on demand from www.spacetimewithstuartgary.com (mobile friendly). *Is our universe just fuzz on an expanding bubble in an extra dimension?Scientists have devised a new model for the Universe which may solve the enigma of dark energy.*NASA given data access from Israel’s up-coming lunar lander missionNASA has signed an agreement with the Israel Space Agency giving it access to the data gathered by a new lunar lander expected to touch down of the Moon early this year.*New Z...

Jan 04, 2019•29 min

01: The Most Distant World Ever Visited

Stream podcast episodes on demand from www.bitesz.com/spacetime (mobile friendly). *The most distant world ever visitedNASA’s New Horizons spacecraft has just completed the most distant flyby ever undertaken swooping down to just 3540 kilometres above the desolate frozen surface of the dark Kuiper Belt object Ultima Thule.*A supernova could have wiped out marine mega faunaA new study suggests large marine species were wiped out in a supernova triggered mass extinction event about 2.6 million yea...

Jan 02, 2019•33 min

103: Saturn’s Rings Are Disappearing

Stream podcast episodes on demand from www.bitesz.com/spacetime (mobile friendly). *Saturn’s rings are disappearingA new study has confirmed that we are seeing the majestic world of Saturn at a unique time in its history with its spectacular ring system about to disappear – at least in astronomical terms.*The mysteries of Ultima ThuleNASA’s New Horizons spacecraft is now all set up for its new year’s day encounter with the distant Kuiper Belt object 2014MU69 Ultima Thule.*Expedition 57 crew retu...

Dec 28, 2018•27 min

102: Farout

Stream podcast episodes on demand from www.spacetimewithstuartgary.com (mobile friendly). *New record for the most distant body in the solar systemAstronomers have discovered the most distant body ever observed in the solar system.*New Horizons closing in on its next targetWith no apparent hazards in its way, NASA’s New Horizons spacecraft has been given the all clear to stay on its current course to intercept its next target -- the distant Kuiper Belt object 2014 MU69 Ultima Thule.*Still no wor...

Dec 26, 2018•37 min

101: Water Discovered on Asteroid Bennu

Stream podcast episodes on demand from www.spacetimewithstuartgary.com (mobile friendly). *Water discovered on asteroid BennuNew data from NASA’s OSIRIS-REx spacecraft has found evidence of water locked inside the clays on the asteroid Bennu.*Adelaide to host Australia’s Space AgencyThe Federal Government has chosen the South Australian capital of Adelaide as home for Australia’s new Space Agency.*Russian spacewalkers gather evidence over the Soyuz capsule air leakCosmonauts have undertaken a ma...

Dec 21, 2018•22 min

100: Largest Black Hole Collision Ever Observed

Stream podcast episodes on demand from www.spacetimewithstuartgary.com (mobile friendly). *Largest black hole collision ever observedAstronomers have discovered the biggest and most distant black hole collision ever observed.You tube video url: http://spacetimewithstuartgary.tumblr.com/post/180857695483 *Voyager 2 enters interstellar spaceFor only the second time in history, a spacecraft has travelled beyond our solar system and entered interstellar space.You tube video url: http://spacetimewith...

Dec 19, 2018•40 min

99: OSIRIS-Rex Arrives

Stream podcast episodes on demand from www.spacetimewithstuartgary.com (mobile friendly). *OSIRIS-Rex arrives at the potential Earth-impacting asteroid BennuNASA’s OSIRIS-REx spacecraft has arrived at its target – the potential Earth-impacting asteroid Bennu.*Another door closes on trying to solve the dark matter mysteryA new dark matter observatory in South Korea has failed to find any supporting evidence to support a controversial 20-year-old claim identifying dark matter.*The white dwarf tick...

Dec 14, 2018•32 min

98: First Sounds From the Martian Surface

Stream podcast episodes on demand from www.spacetimewithstuartgary.com (mobile friendly). *InSight provides the first sounds from the Martian surfaceNASA’s Mars Insight lander has sent back the first audio recordings from the Martian surface.You tube video url: http://spacetimewithstuartgary.tumblr.com/post/180909519923 *How the Earth was madeNew research has discovered that planet Earth formed relatively quickly accreting out of the protoplanetary nebula of dust and gas surrounding the Sun.*Hub...

Dec 12, 2018•31 min

97: A Very Bright Cannibal

The world’s premier astronomy and space science podcast.Stream podcast episodes on demand from www.spacetimewithstuartgary.com (mobile friendly). This episode is brought to you by The Great Courses Plus...lifelong learning from the best in their field. To take up our special free trial offer (full access to all the courses...for free) just use our special URL… www.thegreatcoursesplus.com/space )*The most luminous galaxy ever seen is eating its neighboursThe most luminous galaxy ever discovered i...

Dec 07, 2018•40 min

96: Astronomers find a star almost identical to the Sun

Stream podcast episodes on demand from www.spacetimewithstuartgary.com (mobile friendly). *Astronomers find a star almost identical to the SunAstronomers have discovered a nearby star which is an almost perfect match for our Sun suggesting the two could be stellar siblings.*Watching the slow death of a galaxyA new study shows that one of our nearest neighbouring galaxies – the Small Magellanic Cloud – is slowly dying.*A 3D printed rocket engine – made in MelbourneEngineers in Melbourne have deve...

Dec 05, 2018•23 min

95: Ticking Time Bomb In Our Stellar Backyard

The world’s premier astronomy and space science podcast.Stream podcast episodes on demand from www.spacetimewithstuartgary.com (mobile friendly). *The ticking time bomb in our stellar back yardAstronomers have discovered a unique nearby triple star system containing a pair of massive ‘Wolf-Rayet’ stars which are about to explode as supernovae and could produce one of the most powerful explosions since the big bang -- a gamma-ray burst.You Tube video URL: http://spacetimewithstuartgary.tumblr.com...

Nov 30, 2018•29 min

94: Touchdown!

Stream podcast episodes on demand from www.spacetimewithstuartgary.com (mobile friendly). *NASA’s InSight lander touches down on the red planet Mars.NASA’s Mars InSight spacecraft has landed successfully on Elysium Planitia -- a broad freeze dried plain – just north of the red planet’s equator.You tube video URL: http://spacetimewithstuartgary.tumblr.com/post/180535959488 *The oldest star in the hoodAstronomers have discovered what could be the oldest star in our stellar neighbourhood.*True pola...

Nov 28, 2018•33 min

93: Micro-quasar Blasting Gamma Rays Towards Earth

The world’s premier astronomy and space science podcast.Stream podcast episodes on demand from www.spacetimewithstuartgary.com (mobile friendly). *Micro-quasar blasting gamma rays towards EarthAstronomers have detected high energy gamma rays violently blasting out of a micro-quasar within the Milky Way galaxy.*Alien asteroid Oumuamua posing new mysteriesA new study has placed new size limits on how big that strange looking interstellar asteroid Oumuamua is likely to be.*Mission End for planet-hu...

Nov 24, 2018•29 min

92: Super-Earth Discovery

The world’s premier astronomy and space science podcast.Stream podcast episodes on demand from www.spacetimewithstuartgary.com (mobile friendly). *Super-Earth discovered orbiting one of our nearest neighbouring star systemsAstronomers have detected an exoplanet orbiting Barnard’s Star – the second nearest stellar system to the Sun.You tube video URL: http://keckobservatory.org/barnards_star/ *New Australian Planet hunterA new high precision spectrograph has been launched to detect relatively tin...

Nov 22, 2018•33 min

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