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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

28:51

Space Tornadoes Unveiled, Starship's Mars Mission,...

SpaceTime: Your Guide to Space & Astronomy ·

2025/03/24

SpaceTime Series 28 Episode 36The Astronomy, Space and Science News PodcastSpace Tornadoes Discovered in the Milky Way's Core, SpaceX's Starship to Undertake a Mission to Mars Next Year, and Stranded Astronauts Finally Return Home After Nine Months in SpaceIn this episode of SpaceTime, we explore the astonishing discovery of enormous space tornadoes swirling in the Milky Way's central core. Astronomers have unveiled these spectacular formations, detected using the Atacama Large

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20:58

Exoplanets Discovered, Kuiper Belt's Icy Trio, and...

SpaceTime: Your Guide to Space & Astronomy ·

2025/03/21

SpaceTime Series 28 Episode 35The Astronomy, Space and Science News PodcastDiscovery of a New Planetary System, Stable Trio of Icy Worlds in the Kuiper Belt, and the Fascinating Concept of White HolesIn this episode of SpaceTime, we delve into the groundbreaking discovery of a nearby planetary system orbiting Barnard's Star, the second closest star system to the Sun. Located just 5.96 light years away, this system comprises four small planets, each 20 to 30% the mass of Earth, revealing new insights

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29:23

Supernovae, Stellar Mapping, and Saturn's New Moons:...

SpaceTime: Your Guide to Space & Astronomy ·

2025/03/19

SpaceTime Series 28 Episode 34The Astronomy, Space and Science News PodcastSupernovae's Role in Mass Extinctions, NASA's Stellar Mapping Mission, and New Moons of SaturnIn this episode of SpaceTime, we explore a fascinating new study suggesting that nearby supernovae could have triggered at least two of Earth's mass extinction events. These violent stellar explosions may have stripped away the ozone layer, exposing life to harmful ultraviolet radiation and leading to significant ecological upheaval

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24:55

Ancient Impacts, Lunar Ice Potential, and the Return...

SpaceTime: Your Guide to Space & Astronomy ·

2025/03/17

SpaceTime Series 28 Episode 33The Astronomy, Space and Science News PodcastWorld's Oldest Meteor Impact Crater, Water Ice on the Moon, and the Secretive X37B Shuttle ReturnsIn this episode of SpaceTime, we unveil the discovery of the world's oldest known meteor impact crater located in Western Australia. This ancient structure, dating back 3.5 billion years, was identified in the Pilbara region and challenges previous notions about Earth's geological history and the origins of life. We discuss the

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19:12

Ancient Martian Rocks and Their Secrets, Gamma Ray...

SpaceTime: Your Guide to Space & Astronomy ·

2025/03/14

SpaceTime Series 28 Episode 32The Astronomy, Space and Science News PodcastMartian Minerals Indicating Ancient Life, World's Most Powerful Gamma Ray Observatory, and Ariane 6 Rocket Operations BeginIn this episode of SpaceTime, we explore groundbreaking findings from NASA's Perseverance rover, which has discovered unusual rocks on Mars' Jezero crater rim, hinting at the possibility of ancient life. The rocks, rich in kaolinite, typically form in warm, wet environments, suggesting that Mars may have

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29:59

Mars' Ancient Beaches, Water's Early Emergence, and...

SpaceTime: Your Guide to Space & Astronomy ·

2025/03/12

SpaceTime Series 28 Episode 31The Astronomy, Space and Science News PodcastBeaches on Mars, Water's Early Emergence in the Universe, and Voyager's Power ConservationIn this episode of SpaceTime, we delve into the groundbreaking confirmation by China's Zhurong Mars rover, which has revealed that ancient ocean beaches once graced Mars' northern hemisphere. Using advanced ground-penetrating radar, scientists have discovered sedimentary structures resembling Earth's coastal deposits, suggesting that the

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31:45

Orbital Shifts and Ice Ages, Starship's Explosive...

SpaceTime: Your Guide to Space & Astronomy ·

2025/03/10

SpaceTime Series 28 Episode 30The Astronomy, Space and Science News PodcastEarth's Jessica Cycles, Starship's Latest Failure, and Lunar Landings in TroubleIn this episode of SpaceTime, we explore a groundbreaking discovery linking Earth's ice age cycles to its orbital shifts. Recent research indicates a predictable pattern for glacial and interglacial periods, suggesting the onset of the next ice age could occur in approximately 10,000 years. This insight stems from a million-year climate record

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36:02

Callisto's Ocean Secrets, Lasers Unveiling Mars' Past...

SpaceTime: Your Guide to Space & Astronomy ·

2025/03/07

SpaceTime Series 28 Episode 29The Astronomy, Space and Science News PodcastExploring Callisto's Ocean Potential, Laser Fossil Detection on Mars, and ISS Cleanliness ConcernsIn this episode of SpaceTime, we dive into exciting new research suggesting that Jupiter's moon Callisto may harbor a subsurface ocean, potentially making it another ocean world in our solar system. This revelation builds on data from NASA's Galileo spacecraft, which hinted at the presence of a salty liquid water ocean beneath

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22:39

Orion's Influence on Earth's Climate, Mars' Wet Past...

SpaceTime: Your Guide to Space & Astronomy ·

2025/03/05

The Astronomy, Space and Science News PodcastEarth's Climate Shaped by Orion, New Insights into Mars' Red Color, and NASA's Europa Clipper Mission UpdateIn this episode of SpaceTime, we explore a groundbreaking study suggesting that Earth's climate may have undergone significant changes around 14 million years ago due to our solar system's journey through the Orion star-forming region. Researchers propose that this passage may have compressed the heliosphere, increasing interstellar dust influx and

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28:33

Asteroid 2024 YR4's Threat Averted, Martian Core...

SpaceTime: Your Guide to Space & Astronomy ·

2025/03/03

SpaceTime Series 28 Episode 27The Astronomy, Space and Science News PodcastAsteroid 2024 YR4 Impact Risk Reduced, Insights into Mars' Core, and NASA's Lunar Mission UpdateIn this episode of SpaceTime, we bring you encouraging news about asteroid 2024 YR4, with new observations indicating that the chances of it impacting Earth have plummeted to just 0.001%. Initially flagged as a potential threat, this asteroid has been closely monitored, and the latest data from the Very Large Telescope has allowed

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20:41

Ryugu's Salty Past, Solar Orbiter's Encounter with...

SpaceTime: Your Guide to Space & Astronomy ·

2025/02/28

SpaceTime Series 28 Episode 26The Astronomy, Space and Science News PodcastAsteroid Ryugu's Salty Secrets, Solar Orbiter's Venus Encounter, and NASA's Lunar Resource ExplorationIn this episode of SpaceTime, we delve into the recent findings from the asteroid Richie, where scientists have discovered evidence of salt minerals, hinting at the presence of saline water in the outer solar system. This exciting revelation parallels previous discoveries from asteroid Bennu and enhances our understanding of

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23:09

Quantum Time Arrows, Ancient Martian Rocks, and the...

SpaceTime: Your Guide to Space & Astronomy ·

2025/02/26

SpaceTime Series 28 Episode 25The Astronomy, Space and Science News PodcastTwo Arrows of Time, Ancient Rocks on Mars, and NASA's Lunar Trailblazer MissionIn this episode of SpaceTime, we delve into a groundbreaking discovery by physicists revealing the possibility of two distinct arrows of time emerging from the quantum realm. This fascinating research challenges our conventional understanding of time, suggesting that it may not flow in just one direction, but could theoretically move both forwards

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23:09

Asteroid 2024 YR4 Threat, Lunar Canyon Formation, and...

SpaceTime: Your Guide to Space & Astronomy ·

2025/02/24

SpaceTime Series 28 Episode 24The Astronomy, Space and Science News PodcastAsteroid Impact Odds, Lunar Grand Canyons, and NASA's Stranded AstronautsIn this episode of SpaceTime, we discuss the alarming increase in the odds of asteroid 2024 YR4 impacting Earth, now estimated at 3.1% for December 22, 2032. This asteroid, measuring between 40 to 90 meters, poses a significant threat, and we delve into the implications of planetary defense strategies that could be employed to mitigate this risk.The

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21:01

Snowball Earth Evidence, Blue Origin's Parachute...

SpaceTime: Your Guide to Space & Astronomy ·

2025/02/21

SpaceTime Series 28 Episode 23The Astronomy, Space and Science News PodcastSnowball Earth Evidence, Blue Origin's Parachute Failure, and the Moon Illusion ExplainedIn this episode of SpaceTime, we dive into groundbreaking geological research that provides compelling evidence for the Snowball Earth hypothesis, suggesting that glaciers may have covered the planet from pole to pole hundreds of millions of years ago. This research reveals insights into Earth's climatic history and the emergence of

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23:21

Van Allen's New Belts, Alien Oceans and Life, and...

SpaceTime: Your Guide to Space & Astronomy ·

2025/02/19

SpaceTime Series 28 Episode 22The Astronomy, Space and Science News PodcastNew Van Allen Radiation Belts, Alien Oceans and Signs of Life, and the Largest Black Hole Radio Jet Ever DetectedIn this episode of SpaceTime, we uncover the discovery of two new temporary Van Allen radiation belts created by a massive solar storm that struck Earth in May 2024. This event not only produced stunning auroras but also highlighted the importance of understanding the dynamics of radiation belts for the safety of

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37:59

Earth's Inner Core Mysteries, China's Lunar Quest,...

SpaceTime: Your Guide to Space & Astronomy ·

2025/02/17

SpaceTime Series 28 Episode 21The Astronomy, Space and Science News PodcastShifting Dynamics of Earth's Inner Core, China's Lunar South Pole Mission, and Insights into Hot Jupiter ExoplanetsIn this episode of SpaceTime, we explore groundbreaking research revealing that Earth's inner core may be less solid than previously believed. A new study indicates that the near surface of the inner core is undergoing structural transformations, influenced by interactions with the turbulent outer core. This

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39:43

Earth's Elemental Mysteries, Ariel's Geological...

SpaceTime: Your Guide to Space & Astronomy ·

2025/02/14

SpaceTime Series 28 Episode 20The Astronomy, Space and Science News PodcastNew Discoveries on Earth's Elements, Uranus's Moon Ariel, and the Fate of Comet AtlasIn this episode of SpaceTime, we delve into a groundbreaking study that challenges long-held beliefs about the origins of Earth's missing moderately volatile elements, such as copper and zinc. This research suggests that rather than being lost during the early formation of the solar system, these essential elements were likely retained by the

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32:48

Earth's Water Origins, Bennu's Salty Secrets, and...

SpaceTime: Your Guide to Space & Astronomy ·

2025/02/12

SpaceTime Series 28 Episode 19The Astronomy, Space and Science News PodcastNew Insights into Earth's Water, Asteroid Bennu's Composition, and Marsquake TriggersIn this episode of SpaceTime, we investigate a groundbreaking study that challenges previous beliefs about when water arrived on Earth. New findings suggest that water may have come in during the later stages of Earth’s formation, providing fresh perspectives on the origins of life on our planet. The study highlights the importance of

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19:35

Asteroid Threats, Dark Matter Discoveries, and...

SpaceTime: Your Guide to Space & Astronomy ·

2025/02/10

SpaceTime Series 28 Episode 18The Astronomy, Space and Science News PodcastAsteroid Threat Level Rusty, Dark Matter Experiment, and Martian Lava RocksIn this episode of SpaceTime, we discuss the alarming increase in the threat level of near-Earth asteroid 2024 YR4, now assessed at a 2.3% chance of impacting Earth on December 22, 2032. With astronomers worldwide closely monitoring its trajectory, we explore the potential consequences of an impact from this asteroid, including the possibility of a

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22:55

Io's Volcanic Powerhouse, Ceres' Organic Origins, and...

SpaceTime: Your Guide to Space & Astronomy ·

2025/02/07

SpaceTime Series 28 Episode 17The Astronomy, Space and Science News PodcastVolcanic Activity on Io, Ceres and the Building Blocks of Life, and New Exoplanet Search TechnologyIn this episode of SpaceTime, we explore the astonishing discovery of the largest volcanic hotspot ever observed on Jupiter's moon, Io. NASA's Juno mission reveals a feature that dwarfs Earth's Lake Superior and produces eruptions with six times the energy output of all the world's power plants. This unprecedented volcanic

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1,206 results

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