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.
Episodes
October 17, 2025 • 23 mins
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 Patterns
A 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 ...
Raging Winds on Mars: Unveiling Martian Weather Patterns
A 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 ...
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October 15, 2025 • 23 mins
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 Revealed
A 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 comparis...
Ancient Oceans on Mars: Geological Evidence Revealed
A 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 comparis...
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October 14, 2025 • 38 mins
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 Threat
Recent 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 proxim...
Invisible Asteroids Near Venus: A Hidden Threat
Recent 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 proxim...
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October 10, 2025 • 30 mins
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 Discovery
Astronomers have identified potential candidates for a new type of star in the early universe, known as supermassive dark stars. Recent observat...
Supermassive Dark Stars: A New Cosmic Discovery
Astronomers have identified potential candidates for a new type of star in the early universe, known as supermassive dark stars. Recent observat...
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October 8, 2025 • 25 mins
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 Chemistry
Recent discoveries reported in the journal Nature Astronomy reveal that Saturn's moon Enceladus is spewing complex organic molecules from its subsu...
Enceladus: Unveiling Complex Chemistry
Recent discoveries reported in the journal Nature Astronomy reveal that Saturn's moon Enceladus is spewing complex organic molecules from its subsu...
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October 6, 2025 • 25 mins
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 Years
A 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 approxim...
The Universe's Fate: A Big Crunch in 20 Billion Years
A 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 approxim...
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October 3, 2025 • 21 mins
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. ...
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. ...
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October 1, 2025 • 23 mins
(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 anc...
(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 anc...
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October 1, 2025 • 24 mins
(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 S...
(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 S...
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September 26, 2025 • 27 mins
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 Universe
Astronomers have identified a population of enigmatic red dots in the early universe, potentially represen...
Mysterious Red Dots in the Early Universe
Astronomers have identified a population of enigmatic red dots in the early universe, potentially represen...
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September 24, 2025 • 23 mins
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 6,000
Astronomers 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 highl...
Exoplanet Count Surpasses 6,000
Astronomers 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 highl...
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September 22, 2025 • 35 mins
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 Universe
Scientists 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 Spectroscop...
New Model of the Universe
Scientists 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 Spectroscop...
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September 19, 2025 • 22 mins
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 Horizon
A groundbreaking study suggests that astronomers may soon witness a black hole explosion, an event theorised to occur once every 100,000 years. Researchers now b...
Exploding Black Holes on the Horizon
A groundbreaking study suggests that astronomers may soon witness a black hole explosion, an event theorised to occur once every 100,000 years. Researchers now b...
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September 17, 2025 • 26 mins
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 Revealed
Scientists 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...
Supercontinent Breakup Revealed
Scientists 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...
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September 15, 2025 • 32 mins
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 Mars
NASA 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 kn...
Potential Biosignatures on Mars
NASA 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 kn...
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September 12, 2025 • 20 mins
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 I...
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 I...
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September 10, 2025 • 20 mins
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, ...
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, ...
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September 8, 2025 • 23 mins
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, incl...
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, incl...
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September 5, 2025 • 36 mins
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 Detected
Astronomers have identified what is being hailed as the brightest fast radio burst (FRB) ever record...
Brightest Fast Radio Burst Detected
Astronomers have identified what is being hailed as the brightest fast radio burst (FRB) ever record...
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September 2, 2025 • 23 mins
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 Track
The 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 ...
Juice Mission Back on Track
The 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 ...
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