SpaceTime with Stuart Gary

28:13

Discovering the Moon's True Age, Perseverance's...

SpaceTime with Stuart Gary ·

2024/12/23

SpaceTime Series 27 Episode 154*The Moon's Age: A New PerspectiveNew research suggests the Moon may be much older than previously believed. Evidence indicates the Moon's crust underwent extensive remelting around 4.35 billion years ago, obscuring its true age. This study proposes the Moon could be as old as 4.53 billion years, challenging past estimates and offering a new understanding of its formation.*Perseverance Rover's New HorizonsNASA's Perseverance rover has reached the top of Jezero Crater's

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25:22

Martian Mineral Mysteries, Australia's Spaceport...

SpaceTime with Stuart Gary ·

2024/12/20

SpaceTime Series 27 Episode 153*The Mysterious Origins of Martian MineralsA new study suggests that some Martian minerals may have formed in liquid carbon dioxide rather than water. While traditional views link Mars' dry river channels to past water presence, this research indicates that under ancient Martian conditions, liquid CO2 could have been a significant factor in shaping the planet's geological features. This finding, published in Nature Geoscience, adds a new layer to the ongoing debate

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23:58

Unraveling Mars' Dust Storms, Dark Comet Insights,...

SpaceTime with Stuart Gary ·

2024/12/18

SpaceTime Series 27 Episode 152*Martian Dust Storms: A New UnderstandingA groundbreaking study reveals the triggers behind Mars' infamous planet-wide dust storms. Researchers from the University of Colorado Boulder suggest that relatively warm and sunny days could initiate these massive storms. Presented at the American Geophysical Union's 2024 meeting, the findings could pave the way for forecasting Martian weather, similar to Earth meteorology. Understanding these storms is crucial, as they pose

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30:29

Moon's Circular Mystery, Gravitational Wave...

SpaceTime with Stuart Gary ·

2024/12/16

SpaceTime Series 27 Episode 151*A New Perspective on the Moon's Aitken BasinRecent observations of the Moon's south pole reveal that the Aitken Basin crater is more circular than previously believed. This significant discovery challenges existing theories about its formation and has implications for future lunar missions, including NASA's Artemis program. The study, published in Earth and Planetary Science Letters, suggests a more direct impact created the crater, offering potential access to deep

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25:24

Venus' Uninhabitable Truth, Mars Rover's New...

SpaceTime with Stuart Gary ·

2024/12/13

SpaceTime Series 27 Episode 150*Venus: A Lifeless WorldNew research has debunked the long-standing theory that Venusmight have once been habitable. Despite being Earth's sister planet, a study of its atmospheric chemistry reveals that Venus has always been too dry to support oceans, making it an inhospitable world throughout its history. These findings, published in Nature Astronomy, have significant implications for the search for life on exoplanets, suggesting a focus on more Earth-like

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21:00

Earth's Water Origins, Main Belt Comet Discovery, and...

SpaceTime with Stuart Gary ·

2024/12/11

SpaceTime Series 27 Episode 149*Did Earth's Oceans Come from Comets?New research suggests that Earth's oceans may have originated from comets, reigniting the debate about the origins of Earth's water. Recent observations of Comet 67P reveal a similar molecular signature to Earth's oceans, challenging previous findings and suggesting Jupiter family comets could have contributed to Earth's water supply. This discovery, led by Kathleen Mandit from NASA's Goddard Space Flight Centre, highlights the

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40:07

Artemis Delays, Mars' Watery Past, and Proba-3's...

SpaceTime with Stuart Gary ·

2024/12/10

SpaceTime Series 27 Episode 148*Another Delay for NASA's Artemis Moon MissionNASA has announced a delay in the launch of its Artemis 2 manned Moon mission, now rescheduled for April 2026. Originally planned for September 2025, the delay is due to concerns about the Orion spacecraft's heat shield. This postponement also affects the timeline for Artemis 3, which aims to return humans to the lunar surface. NASA's focus is on ensuring the safety and reliability of the spacecraft's reentry systems, with

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42:46

Cosmic Supernova Secrets, IO's Volcanic Heartbeat,...

SpaceTime with Stuart Gary ·

2024/12/06

SpaceTime Series 27 Episode 147*A Cosmic Glimpse into the Universe's PastAstronomers have witnessed a rare supernova, 2023 UFX, offering insights into the early universe. This unusual stellar explosion involved a metal-poor red supergiant star, providing clues about the cosmic conditions when the universe began. The study, led by Michael Tucker from Ohio State University, reveals how early supernovae seeded the next generation of stars, shaping galaxies like the Milky Way. The findings underscore

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27:07

Dark Matter Breakthrough, Jupiter's Magnetic...

SpaceTime with Stuart Gary ·

2024/12/04

SpaceTime Series 27 Episode 146*Supernova's Potential to End the Dark Matter SearchAstronomers are eagerly awaiting a nearby supernova that could finally solve the mystery of dark matter. A new study suggests that axions, hypothetical particles, could be discovered within seconds of a supernova's gamma-ray burst. The Fermi Gamma Ray Space Telescope might detect these gamma rays, offering insights into the mass of QCD axions. However, the rarity of such supernovae and the telescope's limited field of

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31:40

S27E145: Ice Giants' Mysteries, Parker's Solar...

SpaceTime with Stuart Gary ·

2024/12/02

SpaceTime Series 27 Episode 145*Unveiling the Mysteries of Uranus and NeptuneA new study reveals that Uranus and Neptune, the ice giants of our solar system, may have layered interiors composed of water, methane, and ammonia, similar to oil and water that do not mix. This discovery could explain their unique magnetic fields, previously a mystery to scientists. The research, led by Burkhard Miltzer from the University of California, Berkeley, suggests that these planets have a water-rich layer

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24:05

S27E144: Young Planet Discovery, Photon Shape...

SpaceTime with Stuart Gary ·

2024/11/29

SpaceTime Series 27 Episode 144*Young Exoplanet Challenges Planet Formation TheoriesAstronomers have discovered an exoplanet, Taade 1b, that is just 3 million years old, challenging our current understanding of the speed at which planets form. This young planet, orbiting its star every seven Earth days, offers a unique glimpse into the early stages of planetary formation. The study, led by Madison Barber from the University of North Carolina, highlights the surprising rapidity of Taade 1b's

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24:51

S27E143: Milky Way's Uniqueness, Prober 3's Solar...

SpaceTime with Stuart Gary ·

2024/11/27

SpaceTime Series 27 Episode 143*The Milky Way: An Unusual GalaxyA new study reveals that our Milky Way galaxy is an outlier among similar galaxies, challenging the assumption that it is a typical model for understanding galactic formation and evolution. Published in the Astrophysical Journal, the research highlights differences in the Milky Way's evolutionary history compared to other galaxies of similar mass. The Satellite Surround Galactic Analogues (SEGA) survey has identified 101 Milky Way-like

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39:56

S27E142: Martian Moon Origins, Starship's Sixth...

SpaceTime with Stuart Gary ·

2024/11/25

SpaceTime Series 27 Episode 142*How Mars Got Its MoonsA groundbreaking study suggests that Mars acquired its moons, Phobos and Deimos, after a passing asteroid was torn apart by the planet's gravity. This new hypothesis, based on NASA's supercomputer simulations and published in the journal Icarus, challenges previous theories of their origin, such as capture or major impact. The upcoming Martian Moons Exploration mission by JAXA, with NASA's involvement, aims to further investigate these theories

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21:19

S27E141: Black Hole Banquet, Uranus' Magnetic...

SpaceTime with Stuart Gary ·

2024/11/22

SpaceTime Series 27 Episode 141*Supermassive Black Hole Consumes Matter at Record SpeedAstronomers have discovered a supermassive black hole in the early universe consuming matter at a rate more than 40 times its theoretical limit. This black hole, catalogued as LID568, was observed by the Webb Space Telescope and is providing new insights into the rapid growth mechanisms of black holes shortly after the Big Bang. The findings challenge existing theories on how these cosmic giants formed so quickly

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26:53

S27E140: Sagittarius A* Controversy, Titan's Methane...

SpaceTime with Stuart Gary ·

2024/11/20

SpaceTime Series 27 Episode 140*Revisiting the Milky Way's Black Hole ImageA new study questions the accuracy of the first-ever image of Sagittarius A, the supermassive black hole at the centre of the Milky Way. Researchers suggest the image may not accurately represent its appearance, proposing a more elongated accretion disc instead of the ring-like structure previously released by the Event Horizon Telescope.*Methane in Titan's CrustData from NASA's Cassini spacecraft indicates that Saturn's moon

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30:45

S27E139: Australia's Rocket Renaissance, Cosmic...

SpaceTime with Stuart Gary ·

2024/11/18

SpaceTime Series 27 Episode 139*Gilmore Space Cleared for Orbital LaunchThe Australian Space Agency has granted Gilmore Space the final approval needed to conduct its maiden orbital test flight of the Ares rocket from the Bowen Spaceport in North Queensland. This launch will mark the first orbital test flight of an Australian-made rocket from Australian soil, showcasing a new hybrid propulsion system developed by the company.*Discovery of Red Monster Galaxies in the Early UniverseAstronomers have

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20:55

S27E138: Outer Solar Mysteries, Australia's Orbital...

SpaceTime with Stuart Gary ·

2024/11/15

SpaceTime Series 27 Episode 138*Discovery of the Outer Solar System's Magnetic FieldScientists have discovered evidence of an ancient magnetic field at the far reaches of our solar system. Research published in AGU Advances, based on 4.6 billion-year-old grain samples from the asteroid Richie, suggests the presence of a weak magnetic field during the formation of the outer solar system. This field, although weak, could have been instrumental in the formation of the outer planets, including Jupiter,

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23:32

S27E137: Earth's Slushy Past, Phobos' Solar Dance,...

SpaceTime with Stuart Gary ·

2024/11/13

SpaceTime Series 27 Episode 137*The Earth: A Giant Slushie?New research reveals that Earth once experienced a "slushy" period following its snowball Earth phase. Published in the Proceedings of the National Academy of Sciences, the study by Virginia Tech scientists suggests that as the planet thawed, it transitioned into a slushy state, marked by high carbon dioxide levels and rapid melting. The findings offer fresh insights into Earth's climate evolution and the resilience of life under extreme

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24:16

S27E136: Magnetars' Mysterious Birth, Voyager's Light...

SpaceTime with Stuart Gary ·

2024/11/12

SpaceTime Series 27 Episode 136*Discovering the Origins of MagnetarsA groundbreaking study reveals that magnetars, highly magnetic neutron stars, are born from stellar mergers rather than single star supernova events. These findings, published in Nature, delve into the origins of fast radio bursts (FRBs), which are high-energy flashes releasing more energy in nanoseconds than half a billion suns. The research indicates that FRBs are more common in massive star-forming galaxies, suggesting a link to

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20:42

S27E135: Miranda's Oceanic Mystery, Mars' Green...

SpaceTime with Stuart Gary ·

2024/11/08

SpaceTime Series 27 Episode 135*Could Uranus Moon Miranda Have a Subsurface Ocean?A new study suggests that Uranus' moon Miranda may harbour a liquid water ocean beneath its peculiar jigsaw-like surface. The findings, published in the Planetary Science Journal, challenge existing assumptions about Miranda's history and composition, potentially placing it among the select few worlds in our solar system with environments that could support life. The study highlights the intriguing possibility of a

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