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
November 27, 2025 • 25 mins
In this episode of SpaceTime, we delve into the latest discoveries and challenges in space exploration and Earth science.
Tracking Interstellar Comet 3I Atlas from Mars
The European Space Agency has successfully monitored interstellar comet 3I Atlas from its ExoMars Trace Gas Orbiter, significantly improving the accuracy of its predicted trajectory by a factor of ten. The comet, which travels at speeds of up to 250,000 km/h, was obse...
Tracking Interstellar Comet 3I Atlas from Mars
The European Space Agency has successfully monitored interstellar comet 3I Atlas from its ExoMars Trace Gas Orbiter, significantly improving the accuracy of its predicted trajectory by a factor of ten. The comet, which travels at speeds of up to 250,000 km/h, was obse...
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Cosmic Speedsters: Unravelling Our Solar System's Surprising Velocity and Enceladus' Organic Secrets
November 25, 2025 • 19 mins
(00:00:00) Cosmic Speedsters: Unravelling Our Solar System's Surprising Velocity and Enceladus' Organic Secrets
(00:00:46) Our solar system is moving faster than expected
(00:04:38) Organic molecules discovered erupting from Saturn’s moon Enceladus
(00:08:29) A new satellite launched to study Earth’s oceans
(00:13:49) The Science Report
(00:15:52) Alex on Tech
In this episode of SpaceTime, we uncover groundbreaking insights into E...
(00:00:46) Our solar system is moving faster than expected
(00:04:38) Organic molecules discovered erupting from Saturn’s moon Enceladus
(00:08:29) A new satellite launched to study Earth’s oceans
(00:13:49) The Science Report
(00:15:52) Alex on Tech
In this episode of SpaceTime, we uncover groundbreaking insights into E...
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November 24, 2025 • 20 mins
(00:00:00) Cosmic Clues Beneath Us: The Mantle's Role in Life and the Milky Way Unveiled
(00:00:47) Mysterious structures within Earth's mantle may hold clues to life
(00:05:05) A new unprecedented view of the Milky Way Galaxy
(00:12:36) Stranded Chinese taikonauts return safely to Earth
(00:14:21) The Science Report
(00:16:58) Skeptics guide to the return of the haunted doll.
In this episode of SpaceTime, we uncover groundbreakin...
(00:00:47) Mysterious structures within Earth's mantle may hold clues to life
(00:05:05) A new unprecedented view of the Milky Way Galaxy
(00:12:36) Stranded Chinese taikonauts return safely to Earth
(00:14:21) The Science Report
(00:16:58) Skeptics guide to the return of the haunted doll.
In this episode of SpaceTime, we uncover groundbreakin...
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November 23, 2025 • 23 mins
(00:00:00) Exploring Mars and Beyond: The Escapade Mission and the Expanding Mysteries of the Pleiades
(00:00:43) NASA's ESCAPADE mission to Mars blasts off
(00:10:00) The Pleiades prove to be far bigger than thought
(00:14:05) Ending the debate over interstellar comet 3I-Atlas
(00:17:05) The Science Report
(00:19:39) Skeptics guide to talking to plants.
In this episode of SpaceTime, we explore the latest advancements in space exp...
(00:00:43) NASA's ESCAPADE mission to Mars blasts off
(00:10:00) The Pleiades prove to be far bigger than thought
(00:14:05) Ending the debate over interstellar comet 3I-Atlas
(00:17:05) The Science Report
(00:19:39) Skeptics guide to talking to plants.
In this episode of SpaceTime, we explore the latest advancements in space exp...
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November 19, 2025 • 28 mins
In this episode of SpaceTime, we delve into remarkable discoveries that illuminate the origins of our planet and the cosmos beyond.
Ancient Australian Rocks Shed Light on Earth's Origins
Scientists have made significant strides in understanding the formation of Earth and the Moon through the analysis of 3.7 billion-year-old feldspar crystals from the Murchison region in Western Australia. This research reveals that continental growth...
Ancient Australian Rocks Shed Light on Earth's Origins
Scientists have made significant strides in understanding the formation of Earth and the Moon through the analysis of 3.7 billion-year-old feldspar crystals from the Murchison region in Western Australia. This research reveals that continental growth...
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November 17, 2025 • 23 mins
In this episode of SpaceTime, we explore the latest astronomical phenomena and significant discoveries that are shaping our understanding of Earth and space.
Auroral Displays Light Up the Skies
Planet Earth has been treated to an extraordinary display of auroras, with both the Aurora Australis and Aurora Borealis lighting up the skies following three powerful X-class solar flares, including an X 5.1 event on November 11. This segment...
Auroral Displays Light Up the Skies
Planet Earth has been treated to an extraordinary display of auroras, with both the Aurora Australis and Aurora Borealis lighting up the skies following three powerful X-class solar flares, including an X 5.1 event on November 11. This segment...
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November 13, 2025 • 22 mins
(00:00:00) Cosmic Beginnings and Stellar Discoveries: Unveiling the First Stars and Secrets of the Moon
(00:00:47) Have astronomers finally seen the universe’s first stars
(00:04:06) Hidden secrets about the Moon and the asteroid Vesta
(00:10:45) Euclid peers deep into a stellar nursery full of baby stars
(00:16:05) The Science Report
(00:18:09) Skeptics guide to flat earthers falling flat on their face again
In this episode of Sp...
(00:00:47) Have astronomers finally seen the universe’s first stars
(00:04:06) Hidden secrets about the Moon and the asteroid Vesta
(00:10:45) Euclid peers deep into a stellar nursery full of baby stars
(00:16:05) The Science Report
(00:18:09) Skeptics guide to flat earthers falling flat on their face again
In this episode of Sp...
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November 12, 2025 • 25 mins
(00:00:00) Decelerating Cosmos and Solar Secrets: Unravelling Dark Energy and the Sun's Magnetic Dance
(00:00:45) More confirmation that the Universe's expansion is slowing
(00:08:53) First glimpse of the Sun’s polar magnetic field in motion
(00:14:09) Space Weather events ramping up
(00:18:24) The Science Report
(00:20:29) Alex on Tech NEO the humanoid housekeeper
In this episode of SpaceTime, we explore significant revelations a...
(00:00:45) More confirmation that the Universe's expansion is slowing
(00:08:53) First glimpse of the Sun’s polar magnetic field in motion
(00:14:09) Space Weather events ramping up
(00:18:24) The Science Report
(00:20:29) Alex on Tech NEO the humanoid housekeeper
In this episode of SpaceTime, we explore significant revelations a...
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November 10, 2025 • 20 mins
(00:00:00) Galactic Influences and Supermoons: Exploring Earth's Crust and Taikonaut Trials
(00:00:42) Earth's geology written in the stars
(00:10:30) Taikonauts stranded in space following space junk impact
(00:12:38) Biggest Supermoon of the year
(00:14:59) The Science Report
(00:17:20) Skeptics guide to jogging big foots
In this episode of SpaceTime, we delve into fascinating intersections of geology and astronomy that could re...
(00:00:42) Earth's geology written in the stars
(00:10:30) Taikonauts stranded in space following space junk impact
(00:12:38) Biggest Supermoon of the year
(00:14:59) The Science Report
(00:17:20) Skeptics guide to jogging big foots
In this episode of SpaceTime, we delve into fascinating intersections of geology and astronomy that could re...
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November 7, 2025 • 22 mins
In this episode of SpaceTime, we explore remarkable discoveries and hypotheses that could redefine our understanding of planetary atmospheres and our journey back to the Moon.
Phosphine Discovery in Brian Dwarf Wolf 1130C
For the first time, astronomers have detected phosphine in the atmosphere of the brown dwarf Wolf 1130C, raising intriguing questions about its presence and the chemistry of such celestial bodies. This discovery, re...
Phosphine Discovery in Brian Dwarf Wolf 1130C
For the first time, astronomers have detected phosphine in the atmosphere of the brown dwarf Wolf 1130C, raising intriguing questions about its presence and the chemistry of such celestial bodies. This discovery, re...
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November 4, 2025 • 29 mins
In this episode of SpaceTime, we dive into groundbreaking astronomical discoveries that challenge our understanding of the universe.
The Most Massive Stellar Black Hole Merger Ever Observed
Astronomers have detected the most massive stellar black hole merger to date, cataloged as GW23 1123, which resulted in a black hole with a staggering mass of 225 times that of our Sun. This episode discusses the implications of this merger, obser...
The Most Massive Stellar Black Hole Merger Ever Observed
Astronomers have detected the most massive stellar black hole merger to date, cataloged as GW23 1123, which resulted in a black hole with a staggering mass of 225 times that of our Sun. This episode discusses the implications of this merger, obser...
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November 3, 2025 • 25 mins
In this episode of SpaceTime, we explore a trio of intriguing astronomical phenomena that are reshaping our understanding of the cosmos.
Interstellar Comet 3I Atlas: A Close Encounter
Interstellar comet 3I Atlas has reached its perihelion, passing closest to the Sun without any signs of alien life forms, despite wild media speculation. This episode discusses how the comet maintained its expected trajectory and velocity, while also re...
Interstellar Comet 3I Atlas: A Close Encounter
Interstellar comet 3I Atlas has reached its perihelion, passing closest to the Sun without any signs of alien life forms, despite wild media speculation. This episode discusses how the comet maintained its expected trajectory and velocity, while also re...
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October 30, 2025 • 31 mins
In this episode of SpaceTime, we delve into groundbreaking discoveries that could reshape our understanding of life on Mars and the cosmos beyond.
Martian Ice: A Potential Reservoir for Life
A recent study suggests that Martian ice may be the most promising location to search for signs of ancient microbial life. Researchers found that biomolecules from dormant microbes degrade significantly slower in pure water ice compared to Martia...
Martian Ice: A Potential Reservoir for Life
A recent study suggests that Martian ice may be the most promising location to search for signs of ancient microbial life. Researchers found that biomolecules from dormant microbes degrade significantly slower in pure water ice compared to Martia...
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October 28, 2025 • 33 mins
(00:00:00) Lunar Relics and Interstellar Insights: Discoveries from the Moon and Comet 3I ATLAS
(00:00:46) Relics of the outer solar system discovered on the Moon
(00:03:30) Insights from interstellar comet 3I ATLAS
(00:07:31) SpaceX's Starship Mega rocket test flight
(00:23:54) The Science report
(00:31:46) Episode Wrap
In this episode of SpaceTime, we explore remarkable discoveries that provide new insights into our solar system...
(00:00:46) Relics of the outer solar system discovered on the Moon
(00:03:30) Insights from interstellar comet 3I ATLAS
(00:07:31) SpaceX's Starship Mega rocket test flight
(00:23:54) The Science report
(00:31:46) Episode Wrap
In this episode of SpaceTime, we explore remarkable discoveries that provide new insights into our solar system...
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October 27, 2025 • 16 mins
(00:00:00) Near Miss and Cosmic Spectacles: Asteroids, Comets, and Space Junk in Earth's Orbit
(00:00:46) Planet Earth experiences as asteroid near miss
(00:02:58) Two green comets lighting up the night skies
(00:07:31) Chinese space junk smashes into Western Australia
(00:09:09) The Science Report
(00:12:07) Skeptics guide to the magic healing Biomet
(00:15:15) Show Wrap-up
In this episode of SpaceTime, we dive into a series of a...
(00:00:46) Planet Earth experiences as asteroid near miss
(00:02:58) Two green comets lighting up the night skies
(00:07:31) Chinese space junk smashes into Western Australia
(00:09:09) The Science Report
(00:12:07) Skeptics guide to the magic healing Biomet
(00:15:15) Show Wrap-up
In this episode of SpaceTime, we dive into a series of a...
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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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