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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

22:04

Cosmic Beginnings and Stellar Discoveries: Unveiling...

SpaceTime: Your Guide to Space & Astronomy ·

2025/11/14

(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 SpaceTime, we uncover groundbreaking findings that could reshape our

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25:51

Decelerating Cosmos and Solar Secrets: Unravelling...

SpaceTime: Your Guide to Space & Astronomy ·

2025/11/13

(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 about the universe's expansion, the Sun's magnetic field, and the

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20:55

Galactic Influences and Supermoons: Exploring Earth's...

SpaceTime: Your Guide to Space & Astronomy ·

2025/11/10

(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 reshape our understanding of Earth's history and the cosmos.Earth's

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22:52

Phosphine Mysteries and Lunar Returns: Unveiling...

SpaceTime: Your Guide to Space & Astronomy ·

2025/11/08

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 1130CFor 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, reported in the journal Science, highlights the significance of

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29:58

Stellar Giants and Cosmic Mysteries: The Most Massive...

SpaceTime: Your Guide to Space & Astronomy ·

2025/11/05

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 ObservedAstronomers 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, observed by the LIGO Virgo Collaboration, and how it pushes the boundaries

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25:13

Interstellar Comet 3I Atlas and Hidden Ice:...

SpaceTime: Your Guide to Space & Astronomy ·

2025/11/04

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 EncounterInterstellar 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 revealing groundbreaking findings from NASA's Swift Space Telescope,

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31:50

Martian Ice and Cosmic Shadows: Unveiling Life and...

SpaceTime: Your Guide to Space & Astronomy ·

2025/10/31

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 LifeA 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 Martian soil mixtures. This discovery, published in the journal

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33:06

Lunar Relics and Interstellar Insights: Discoveries...

SpaceTime: Your Guide to Space & Astronomy ·

2025/10/29

(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 and beyond.Relics of the Outer Solar System Found on the MoonA

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16:24

Near Miss and Cosmic Spectacles: Asteroids, Comets,...

SpaceTime: Your Guide to Space & Astronomy ·

2025/10/28

(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 astonishing astronomical events that recently unfolded, including a

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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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1,224 results

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