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PODCAST

SpaceTime: Your Guide to Space & Astronomy

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.

science astronomy

All Episodes

23:55

Dust Devils and Tectonic Tales: Unraveling Mars and...

SpaceTime: Your Guide to Space & Astronomy ·

2025/10/17

In this episode of SpaceTime, we uncover the latest findings in Martian meteorology, delve into Earth's ancient tectonic activity, and prepare for humanity's return to the Moon.Raging Winds on Mars: Unveiling Martian Weather PatternsA groundbreaking study published in the journal Science Advances reveals that wind speeds on Mars can reach up to 160 km/h, significantly higher than earlier estimates. Lead author Valentin U.H. Meckel from the University of Bern discusses how these powerful winds, along

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23:48

Martian Oceans and Lunar Mysteries: Uncovering the...

SpaceTime: Your Guide to Space & Astronomy ·

2025/10/15

In this episode of SpaceTime, we explore groundbreaking discoveries that reshape our understanding of Mars, the Moon, and the Milky Way Galaxy.Ancient Oceans on Mars: Geological Evidence RevealedA new study published in the journal Geophysical Research Letters presents compelling geological evidence that Mars' Northern Hemisphere was once home to a vast ocean. Lead author Chris from the University of Arkansas discusses how comparisons between river rocks on Earth and Martian sediment reveal ancient

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38:12

Hidden Hazards: Unmasking Earth's Threat from...

SpaceTime: Your Guide to Space & Astronomy ·

2025/10/14

In this episode of SpaceTime, we delve into the intriguing world of near-Earth asteroids, the evolution of our universe, and the remarkable discovery of a rogue planet experiencing unprecedented growth.Invisible Asteroids Near Venus: A Hidden ThreatRecent computer simulations published in the journal Astronomy and Astrophysics have raised alarms about a population of near-Earth asteroids that remain undetectable due to their proximity to Venus. These Venusian co-orbital asteroids, which share an

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30:17

Dark Stars and Cosmic Origins: Unraveling the Early...

SpaceTime: Your Guide to Space & Astronomy ·

2025/10/10

In this episode of SpaceTime, we uncover the latest revelations in astrophysics, including the intriguing prospect of supermassive dark stars, Australia's ambitious lunar rover mission, and fresh insights into the formation of our solar system.Supermassive Dark Stars: A New Cosmic DiscoveryAstronomers have identified potential candidates for a new type of star in the early universe, known as supermassive dark stars. Recent observations from the Webb Space Telescope suggest that these stars,

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25:05

Enceladus Unveiled: Fresh Discoveries of Organic...

SpaceTime: Your Guide to Space & Astronomy ·

2025/10/08

In this episode of SpaceTime, we dive into the fascinating findings from Saturn's icy moon Enceladus, discuss delays in the Dream Chaser spaceplane's launch schedule, and celebrate NASA's breakthroughs in laser communications for deep space missions.Enceladus: Unveiling Complex ChemistryRecent discoveries reported in the journal Nature Astronomy reveal that Saturn's moon Enceladus is spewing complex organic molecules from its subsurface ocean. Data collected by the Cassini spacecraft during its

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25:30

The Universe's Countdown: New Insights into Cosmic...

SpaceTime: Your Guide to Space & Astronomy ·

2025/10/06

In this episode of SpaceTime, we explore the future of our universe, the latest advancements in mapping our Milky Way, and the pivotal role fungi played in the evolution of life on land.The Universe's Fate: A Big Crunch in 20 Billion YearsA groundbreaking study published in the Journal of Cosmology and Astroparticle Physics reveals that the universe is approaching the midpoint of its 33 billion-year lifespan and may end in approximately 20 billion years. Lead author Henry Tighe from Cornell

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21:19

Ceres: The Dwarf Planet That Might Have Hosted Life?

SpaceTime: Your Guide to Space & Astronomy ·

2025/10/03

In this episode of SpaceTime, we delve into the intriguing potential for life on the dwarf planet Ceres, explore NASA's latest mission to study the heliosphere, and celebrate the achievements of the University of Melbourne's Spirit Nanosat.Ceres: A Potentially Habitable World?Recent research published in Science Advances suggests that Ceres, currently a frigid and frozen world, may have once harboured conditions suitable for life. By modelling the planet's thermal and chemical history, scientists

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23:18

Mercury's Shrinking Secrets: Insights into the Solar...

SpaceTime: Your Guide to Space & Astronomy ·

2025/10/01

(00:00:00) Mercury's Shrinking Secrets: Insights into the Solar System's Smallest Planet(00:00:43) Mercury's Ongoing Shrinkage (00:03:11) NASA's Carruthers Geocorona Observatory (00:11:52) Insights from Martian Meteorite NWA 16254 (00:14:23) Tech News In this episode of SpaceTime, we explore the intriguing dynamics of Mercury's shrinking size, embark on a mission to unveil Earth's elusive exosphere, and uncover the secrets of ancient volcanic activity on Mars.Mercury's Ongoing ShrinkageRecent

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24:29

Stardust from Beyond: Unveiling the Secrets of...

SpaceTime: Your Guide to Space & Astronomy ·

2025/10/01

(00:00:00) Stardust from Beyond: Unveiling the Secrets of Asteroid Bennu and Saturn's Mysteries (00:00:47) Scientists have discovered minerals older than our solar system embedded in asteroid Bennu (00:10:22) Scientists using NASA's Webb telescope have uncovered mysterious features in Saturn's atmosphere (00:14:58) NASA's Parker Solar Probe completes 25th close approach to the sun (00:17:27) The Science Report In this episode of Space Time, we uncover groundbreaking discoveries that challenge our

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27:16

Red Dots and Black Hole Stars: Unraveling Cosmic Secrets

SpaceTime: Your Guide to Space & Astronomy ·

2025/09/26

In this episode of SpaceTime, we dive into the cosmos to uncover the secrets of the early universe, explore the potential for black hole atmospheres, and examine the intriguing history of habitability on Mars, alongside the launch of a new deep space antenna by the European Space Agency.Mysterious Red Dots in the Early UniverseAstronomers have identified a population of enigmatic red dots in the early universe, potentially representing exotic stellar atmospheres around ancient black holes. These

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23:16

Exoplanets Galore: Celebrating 6,000 Discoveries and...

SpaceTime: Your Guide to Space & Astronomy ·

2025/09/24

In this episode of SpaceTime, we celebrate a major milestone in exoplanet discoveries, unravel the enigmatic surface of Venus, and delve into the intriguing tale of interstellar comet 3I ATLAS.Exoplanet Count Surpasses 6,000Astronomers have reached an impressive milestone, confirming their 6,000th exoplanet, a testament to the rapid pace of discoveries since the first detection of an exoplanet in 1995. This milestone not only highlights the evolving understanding of our galaxy but also raises

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35:26

Cosmic Webs and Dark Energy: A New Model for the...

SpaceTime: Your Guide to Space & Astronomy ·

2025/09/22

In this episode of SpaceTime, we tackle the mysteries of the cosmos with a new mathematical model of the universe and ponder the age-old question: are we alone in the universe?New Model of the UniverseScientists have unveiled a groundbreaking mathematical model aimed at simplifying our understanding of the universe's evolution over the past 13.8 billion years. This innovative research, based on data from the Dark Energy Spectroscopic Instrument (DESI), offers fresh insights into the cosmic web's

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22:05

Galactic Jets and Black Hole Explosions: Unveiling...

SpaceTime: Your Guide to Space & Astronomy ·

2025/09/19

In this episode of SpaceTime, we explore the thrilling prospects of observing exploding black holes, an astonishing stellar jet on the outskirts of the Milky Way, and the meticulous preparations for an Earth observation satellite mission.Exploding Black Holes on the HorizonA groundbreaking study suggests that astronomers may soon witness a black hole explosion, an event theorised to occur once every 100,000 years. Researchers now believe there’s a 90% chance of observing such an explosion within the

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26:01

Earth's Metal Recipe: Tectonics and the...

SpaceTime: Your Guide to Space & Astronomy ·

2025/09/17

In this episode of SpaceTime, we uncover the secrets of ancient geology, explore the watery past of an asteroid, and delve into the origins of globular clusters.Supercontinent Breakup RevealedScientists have made significant strides in understanding the breakup of the supercontinent Rodinia, which occurred over 800 million years ago. Research conducted on rare minerals in Outback Australia has revealed how niobium-rich carbonatites rose through fault zones during tectonic rifting, providing insights

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32:40

Mars' Microbial Secrets: Potential Biosignatures...

SpaceTime: Your Guide to Space & Astronomy ·

2025/09/16

In this episode of SpaceTime, we dive into groundbreaking discoveries on Mars, the intriguing atmosphere of Makemake, and the awe-inspiring total lunar eclipse that captivated millions.Potential Biosignatures on MarsNASA scientists have revealed that samples collected by the Perseverance rover from Jezero Crater may hold the best chance yet of uncovering evidence of past microbial life. The samples, taken from the rock formation known as Chiava Falls, exhibit characteristics that could indicate

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20:27

Water Origins: Comets, Satellites, and Rocket Fuels

SpaceTime: Your Guide to Space & Astronomy ·

2025/09/12

Sponsor Details:This episode of SpaceTime is brought to you with the support of Insta360. Capture your adventures with their latest game-changer, the GOUltra. For a special SpaceTime listener offer, visit store.insta360.com and use the promo code SPACETIME at checkout. Help support SpaceTime and get a great deal. Win/win!In this episode of SpaceTime, we explore fascinating insights into the origins of Earth's water, the launch of Israel's advanced spy satellite, and the development of a

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20:43

Solar Flares, Jupiter's Core, and Life on Exoplanets

SpaceTime: Your Guide to Space & Astronomy ·

2025/09/11

Sponsor Details:This episode of SpaceTime is brought to you with the support of Insta360. Capture your adventures with their latest game-changer, the GOUltra. For a special SpaceTime listener offer, visit store.insta360.com and use the promo code SPACETIME at checkout. Help support SpaceTime and get a great deal. Win/win!In this episode of SpaceTime, we delve into some astounding revelations in solar physics and planetary science, including the extreme temperatures of solar flares, new insights into

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23:19

Martian Mysteries: Unearthing Asteroid Remnants

SpaceTime: Your Guide to Space & Astronomy ·

2025/09/08

Sponsor Details:This episode of SpaceTime is brought to you with the support of Insta360. Capture your adventures with their latest game-changer, the GOUltra. For a special SpaceTime listener offer, visit store.insta360.com and use the promo code SPACETIME at checkout. Help support SpaceTime and get a great deal. Win/win!In this episode of SpaceTime, we uncover groundbreaking discoveries in planetary science and solar physics, including the remnants of ancient asteroids on Mars, the recovery of the

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36:01

Cosmic Revelations: The Brightest Fast Radio Burst...

SpaceTime: Your Guide to Space & Astronomy ·

2025/09/05

In this episode of SpaceTime, we uncover some of the most exciting discoveries and developments in the universe, including the detection of the brightest fast radio burst ever observed, the New Horizons spacecraft's record-setting hibernation, and an innovative method for generating oxygen in space.Brightest Fast Radio Burst DetectedAstronomers have identified what is being hailed as the brightest fast radio burst (FRB) ever recorded. Catalogued as FRB 2025 0316A, this extraordinary flash of energy

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23:05

Lunar Innovations: Creating Water and Fuel from Moon...

SpaceTime: Your Guide to Space & Astronomy ·

2025/09/03

In this episode of SpaceTime, we explore the latest developments in space exploration, including the European Space Agency's Juice mission, NASA's Psyche spacecraft, and groundbreaking advancements in lunar resource utilization.Juice Mission Back on TrackThe European Space Agency's Jupiter Icy Moons Explorer, Juice, is set for a critical flyby of Venus after overcoming a communications anomaly that temporarily severed contact with Earth. Engineers successfully restored communication with the

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