Episodios

  • Discovering 15 Giant Radio Galaxies, Titan's Rapid Changes, and the AI Extinction Debate

    Discovering 15 Giant Radio Galaxies, Titan's Rapid Changes, and the AI Extinction Debate
    May 13 2025
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    This episode of SpaceTime explores remarkable discoveries and urgent cosmic events that are reshaping our understanding of the universe.
    New Giant Galaxies Discovered
    Astronomers unveil the discovery of 15 new giant radio galaxies, each spanning over 3 million light years and hosting supermassive black holes. Utilizing the advanced capabilities of the Australian Square Kilometer Array Pathfinder (ASCAP), researchers reveal the unique characteristics of these galaxies, including their powerful jets and lobes traveling at superluminal speeds. We delve into the implications of these findings for our understanding of galaxy formation and evolution.
    Changes on Titan
    Next, we discuss the intriguing changes occurring on Saturn's moon Titan, which is experiencing rapid orbital changes on geological timescales. Scientists explore the factors influencing Titan's tidal dissipation rate and what it reveals about the moon's internal structure and history. This study provides insights into the dynamic processes at play in our solar system's moons.
    Failed Soviet Spacecraft Returns
    We also cover the dramatic re-entry of the Kosmos 482, a failed Soviet spacecraft that spent 53 years in orbit before crashing back to Earth. Launched in 1972 on a mission to Venus, the spacecraft's uncontrolled descent raises concerns about space debris and its potential impact on Earth.
    AI and Humanity's Future
    Finally, we tackle the controversial topic of artificial intelligence and its potential risks to humanity. With AI evolving at an unprecedented pace, we examine the findings of a new study that assesses the likelihood of AI leading to human extinction. As science fiction warns of a future dominated by AI, we explore the reality of these threats and what they mean for our future.
    www.spacetimewithstuartgary.com
    ✍️ Episode References
    Science Advances
    https://www.science.org/journal/sciadv
    Journal of the American Medical Association
    https://jamanetwork.com/journals/jama
    Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.
    00:00 This is space time series 28, episode 57 for broadcast on 12 May 2025
    00:54 Astronomers have discovered 15 giant radio galaxies each hosting a supermassive black hole
    09:35 You're still learning about these galaxies
    11:57 Now you, uh, mentioned starburst galaxies earlier. What are we seeing in elliptical galaxies when this happens
    15:04 Foreign astronomers have discovered that the orbit of the moon Titan is changing quickly
    18:49 A failed Soviet era spacecraft has crashed back to Earth
    21:24 New study claims there's still little chance of artificial intelligence actually exterminating humanity
    25:39 Using cannabis during pregnancy may increase risk of several adverse birth outcomes, study finds
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    36 m
  • Mapping the Milky Way: New Insights, Martian Mysteries, and Psyche's Thruster Troubles

    Mapping the Milky Way: New Insights, Martian Mysteries, and Psyche's Thruster Troubles
    May 9 2025
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    In this episode of SpaceTime, we unveil a stunning new ultraviolet map of the Milky Way galaxy, thanks to NASA's New Horizons spacecraft. This groundbreaking observation, published in the Astronomical Journal, provides astronomers with unprecedented insights into the galactic environment surrounding our solar system. We discuss how these findings challenge existing theories about interstellar hydrogen emissions and reveal the complex structures of hot interstellar gas bubbles.
    Exploring Mars with Perseverance
    Next, we follow NASA's Perseverance Rover as it investigates the intriguing rock formations at the Jezero crater rim. Discover how the rover is analyzing the contrasting layers of rock, searching for clues about Mars's geological history and the processes that shaped its surface.
    Psyche Spacecraft Troubles
    Finally, we address the ongoing investigation into a significant issue with the electric propulsion system of NASA's Psyche spacecraft. Launched in 2023, this mission aims to explore the metallic asteroid 16 Psyche. We delve into the challenges faced by mission managers and discuss potential solutions to ensure the spacecraft continues on its path to unravel the mysteries of planetary cores.
    www.spacetimewithstuartgary.com
    ✍️ Episode References
    Astronomical Journal
    https://iopscience.iop.org/journal/0004-637X
    NASA Perseverance Rover
    https://mars.nasa.gov/mars2020/
    NASA Psyche Mission
    https://www.nasa.gov/psyche
    Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.
    00:00 This is Space Time Series 28, episode 56 for broadcast on 9 May 2025
    00:45 NASA's New Horizons spacecraft reveals a new ultraviolet map of the Milky Way
    12:30 Mars Perseverance Rover continues its exploration of Jezero crater
    18:15 NASA investigates issues with the Psyche spacecraft's electric propulsion system
    22:00 Skywatch: May night skies and celestial events
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    36 m
  • The Cosmic Origins of Uranium, Vesta's Surprising Identity, and Mars' Ancient Climate

    The Cosmic Origins of Uranium, Vesta's Surprising Identity, and Mars' Ancient Climate
    May 7 2025
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    This episode of SpaceTime dives deep into the cosmos, revealing groundbreaking insights into the origins of heavy elements and the geological history of Mars.First, we explore a revolutionary study that uncovers how giant exploding stars produce uranium and other heavy elements. Researchers are now investigating gamma-ray burst jets and the surrounding cocoon formed by collapsed stars. This new framework suggests that high-energy photons can dissolve stellar material into neutrons, leading to the creation of heavy elements through a rapid neutron capture process. We discuss the implications of these findings and how they challenge long-held beliefs about nucleosynthesis in the universe.Shattering Beliefs About Asteroid Vesta
    Next, we turn our attention to the asteroid Vesta, where a recent study published in Nature Astronomy reveals that its interior structure is far more uniform than previously thought. This discovery has led scientists to reconsider Vesta's identity, proposing that it may simply be a large asteroid rather than a protoplanet. We examine the research that challenges decades of assumptions about Vesta's formation and its role in understanding the early solar system.Did It Rain or Snow on Ancient Mars?
    Finally, we investigate the ancient climate of Mars, with a new study suggesting that geological formations on the planet were shaped by heavy precipitation, indicating a warmer and wetter past. This research utilizes computer simulations to analyze how rain and snow may have contributed to the development of Martian valleys and channels. We discuss the significance of these findings and their implications for our understanding of Mars's climatic history.www.spacetimewithstuartgary.com
    ✍️ Episode References
    Astrophysical Journal
    https://iopscience.iop.org/journal/0004-637X
    Nature Astronomy
    https://www.nature.com/natureastronomy/
    Journal of Geophysical Research Planets
    https://agupubs.onlinelibrary.wiley.com/journal/21699356
    Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.
    00:00 New study provides clues explaining how exploding stars produce uranium and other heavy elements
    06:21 New study suggests giant asteroid Vesta is really just a big asteroid
    15:19 New study suggests heavy precipitation likely fed valleys on ancient Mars
    19:49 A new study warns that microplastic pollution could compromise ocean carbon
    22:17 More than 31,000 passwords belonging to Australian banks have been stolen
    24:47 Space Time is available every Monday, Wednesday and Friday through bitesz.com
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    29 m
  • Eos: The Nearby Molecular Cloud; Jupiter's Polar Cyclones...

    Eos: The Nearby Molecular Cloud; Jupiter's Polar Cyclones...
    May 6 2025
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    This episode of SpaceTime explores fascinating new discoveries and urgent updates from the cosmos.First, astronomers have identified a vast molecular gas and dust cloud named Eos, located just 300 light years away from Earth. This remarkable finding, published in the journal Nature Astronomy, marks the first detection of a molecular cloud using far ultraviolet emissions of molecular hydrogen. Eos, which is composed primarily of hydrogen, presents unique opportunities for studying the interstellar medium and the processes of star formation. We discuss the implications of this discovery and how it could reshape our understanding of molecular clouds across the galaxy.Jupiter's Polar Cyclones Under the Microscope
    Next, we delve into the latest revelations from NASA's Juno mission, which is providing new insights into Jupiter's ferocious polar cyclones and the volcanic activity on its moon Io. With fresh observations, scientists are uncovering the dynamics of Jupiter's atmosphere and the subsurface temperature profile of Io, shedding light on the gas giant's extreme weather patterns and the moon's geological activity.Out of Control Russian Spacecraft
    Finally, we discuss the impending re-entry of the Venera 8 spacecraft, a remnant of the Soviet era, which is expected to crash back to Earth on May 10. Launched in 1972, this spacecraft has been tumbling in low Earth orbit for over five decades. We examine the risks associated with its uncontrolled descent and the potential impact it may have upon re-entry.www.spacetimewithstuartgary.com
    ✍️ Episode References
    Nature Astronomy
    https://www.nature.com/natureastronomy/
    NASA Juno Mission
    https://www.nasa.gov/mission_pages/juno/main/index.html
    Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.
    00:00 This is space Time Series 28, episode 54 for broadcast on the 5th May, 2025
    00:48 Astronomers have discovered a vast invisible molecular, gas and dust cloud near Earth
    12:40 Two key experiments are needed to help us understand the origin of Jupiter
    15:42 A failed Soviet spacecraft designed to land on Venus is about to crash on Earth
    19:00 New study claims people who use cannabis have higher risk of heart attack
    21:12 New study claims ghost lanterns in South Carolina may be caused by earthquakes
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    26 m
  • Mars' Carbon Cycle Unveiled, SKA Project Progress, and ISS Rush Hour

    Mars' Carbon Cycle Unveiled, SKA Project Progress, and ISS Rush Hour
    May 2 2025
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    In this episode of SpaceTime, we uncover groundbreaking discoveries and updates from the cosmos. First, NASA's Curiosity Rover has revealed evidence of a carbon cycle on Mars, with significant carbon deposits found in Gale Crater. This finding, detailed in the journal Science, brings researchers closer to understanding Mars's potential to support life in its past. We discuss the implications of these findings and what they mean for the Red Planet's climatic history and habitability.
    Square Kilometer Array Update
    Next, we provide an exciting update on the billion-dollar Square Kilometer Array (SKA) project, the world's largest radio telescope currently under construction in Australia and South Africa. We explore how this massive facility will revolutionize our understanding of the universe, operating at unprecedented speeds and sensitivities. With 132,000 antennas spread over vast distances, the SKA aims to answer fundamental questions about gravity, magnetism, and the evolution of galaxies.
    Busy Times at the International Space Station
    Finally, we take a look at the bustling activity aboard the International Space Station. With recent crew returns and new cargo deliveries, including groundbreaking experiments on time measurement and gravitational research, the ISS continues to be a hub of scientific advancement. We discuss the latest missions and what they mean for future exploration and research in space.
    www.spacetimewithstuartgary.com
    ✍️ Episode References
    Science
    https://www.science.org/
    Square Kilometer Array
    https://www.skao.int/
    NASA
    https://www.nasa.gov/
    Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.
    00:00 This is space Time Series 28, episode 53 for broadcast on 2 May 2025
    00:25 NASA's Mars Curiosity Rover finds evidence of a carbon cycle on the Red Planet
    03:51 Construction works well advanced on world's largest radio telescope, the SKA
    07:40 Scientists are building the world's largest radio telescope to probe the deep universe
    10:40 Three crew members from the International Space Station have successfully returned to Earth
    13:44 Previous studies suggested H5N1 bird flu could spread easily between mammals
    16:33 Australian Skeptics has debunked 15 popular supernatural claims
    20:00 Some of the things people take seriously have since been proved to Be fake
    24:23 Haunted locations are always dangerous. Are ghosts always dangerous?
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    29 m
  • Titan's Missing Deltas, Mars' Volcanic Past, and Kelt 9b's Metal Discovery

    Titan's Missing Deltas, Mars' Volcanic Past, and Kelt 9b's Metal Discovery
    Apr 30 2025
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    In this episode of SpaceTime, we delve into the mysterious absence of river deltas on Titan, Saturn’s largest moon. Despite having rivers of methane and ethane, a new study published in the Journal of Geophysical Research Planets reveals that Titan is largely devoid of these geological features, raising intriguing questions about its unique processes and history. We discuss the implications of this finding and what it means for our understanding of Titan's climate and geological past.
    Volcanic History of Mars
    Next, we explore groundbreaking research from NASA's Perseverance rover, which has uncovered a diverse array of iron-rich volcanic rocks in Jezero Crater. This study, reported in Science Advances, provides fresh insights into Mars's geological history and its potential to have supported ancient life. The findings reveal complex volcanic processes that may have occurred on the Red Planet, enhancing our understanding of its habitability.
    Rare Earth Metals in Exoplanet Atmosphere
    Finally, we celebrate the discovery of rare Earth metals in the atmosphere of Kelt 9b, one of the hottest known exoplanets. Astronomers have detected vaporized elements such as sodium, magnesium, and the rare Earth metals scandium and yttrium, marking a significant milestone in exoplanet research. This discovery opens new avenues for understanding the atmospheres of distant worlds and their unique compositions.
    www.spacetimewithstuartgary.com
    ✍️ Episode References
    Journal of Geophysical Research Planets
    https://agupubs.onlinelibrary.wiley.com/journal/21699356
    Science Advances
    https://www.science.org/journal/sciadv
    Astronomy and Astrophysics
    https://www.aanda.org/
    NASA
    https://www.nasa.gov/
    Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.
    00:00 This is space Time Series 28, Episode 52 for broadcast on 30 April 2025
    00:46 Scientists are looking for Titan's missing river deltas
    06:02 NASA's Mars Perseverance Rover is analyzing Martian volcanic rocks
    10:17 Astronomers have discovered rare Earth metals in the atmosphere of a hot exoplanet
    17:58 People who were conceived during colder seasons store fat differently, study finds
    20:25 YouTube is celebrating its 20th birthday with some interesting stats
    22:16 Google to launch Android 16 three or four months earlier than Apple's iOS
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    27 m
  • Solar Storms and Martian Mysteries: The Secrets of Coronal Holes and Ancient Waters

    Solar Storms and Martian Mysteries: The Secrets of Coronal Holes and Ancient Waters
    Apr 28 2025
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    In this episode of SpaceTime, we explore the intriguing phenomena of coronal holes on the Sun and their significant impact on space weather. A new study published in Scientific Reports reveals how these magnetic windows are launching supersonic solar wind streams into the heliosphere, providing crucial insights for future solar monitoring missions like ESA's Vigil. We discuss the dangers posed by solar storms to Earth's infrastructure and how advanced forecasting can mitigate these risks.
    Watery Past of Mars
    Next, we uncover exciting findings from NASA's Perseverance rover, which suggest that Mars once had widespread water, as indicated by the presence of calcium sulfate minerals. Utilizing innovative X-ray backscattered diffraction techniques, scientists are piecing together the planet's geological history and its potential for past life.
    NASA's Lucy Mission Success
    Finally, we celebrate the successful flyby of the main belt asteroid Donaldjohanson by NASA's Lucy spacecraft. Captured images reveal its unique potato-like shape and complex geology, shedding light on the building blocks of our solar system. With future encounters on the horizon, Lucy aims to enhance our understanding of planetary formation.

    www.spacetimewithstuartgary.com
    ✍️ Episode References
    Scientific Reports
    https://www.nature.com/srep
    NASA
    https://www.nasa.gov/
    Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.
    Más Menos
    42 m
  • Earth's Water Origins Rewritten, Mars' Magnetic Mystery Unveiled

    Earth's Water Origins Rewritten, Mars' Magnetic Mystery Unveiled
    Apr 25 2025
    In this episode of SpaceTime, we unveil groundbreaking evidence that challenges previously held theories about the origins of Earth's water. Recent findings published in the journal Icarus indicate that rather than being delivered by asteroids and comets, Earth's water may have formed alongside the planet itself. The study utilizes a unique meteorite known as the enstatite chondrite to reveal a rich source of hydrogen essential for water formation, reshaping our understanding of how life-sustaining conditions developed on Earth.
    The Enigmatic Magnetic Field of Mars
    Next, we delve into the curious case of Mars's magnetic field, which has puzzled scientists for decades. A new study suggests that the strange magnetic signatures observed on the Red Planet could be attributed to a partially molten core predominantly covering the southern hemisphere. This research provides fresh insights into Mars's geological history and the implications for its atmospheric evolution, as the planet transitioned from a warm, wet environment to the arid desert we see today.
    The Lyrids Meteor Shower
    Additionally, we celebrate one of humanity's oldest known meteor showers, the Lyrids, which are currently dazzling skywatchers. First recorded over 2,700 years ago, these meteors originate from comet Thatcher and promise a beautiful celestial display. Although not as prolific as other meteor showers, the Lyrids offer a captivating spectacle for stargazers, with expectations of 10 to 15 meteors per hour during peak viewing times.
    00:00 Space Time Series 28 Episode 50 for broadcast on 25 April 2025
    00:49 New evidence on the origins of Earth's water
    06:30 Analysis of the enstatite chondrite meteorite
    12:15 The mystery of Mars's magnetic field
    18:00 Implications of a partially molten Martian core
    22:45 Overview of the Lyrids meteor shower
    27:00 Summary of recent astronomical findings
    30:15 Science report: Health risks linked to food additives
    www.spacetimewithstuartgary.com
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    ✍️ Episode References
    Icarus
    https://www.journals.elsevier.com/icarus
    Geophysical Research Letters
    https://agupubs.onlinelibrary.wiley.com/journal/19449224
    NASA
    https://www.nasa.gov/
    Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.
    Más Menos
    18 m
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