SpaceTime: Your Guide to Space & Astronomy Podcast Por Stuart Gary arte de portada

SpaceTime: Your Guide to Space & Astronomy

SpaceTime: Your Guide to Space & Astronomy

De: Stuart Gary
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 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.Copyright bitesz.com Astronomía Astronomía y Ciencia Espacial Ciencia Historia Natural Naturaleza y Ecología
Episodios
  • Earth's Ancient Secrets: Unveiling the Oldest Rocks and Mars' Frozen History

    Earth's Ancient Secrets: Unveiling the Oldest Rocks and Mars' Frozen History
    Jul 11 2025
    This episode of SpaceTime is brought to you by NordVPN....our official VPN partner. To get your special SpaceTime listener offer, simply visit www.nordvpn.com/stuartgary. You'll be glad you did...and remember, our special offer comes with a 30 day money back guarantee...so there's nothing to lose.
    In this episode of SpaceTime, we delve into groundbreaking research that sheds light on Earth's ancient history, the formation of hot Jupiters, and the enigmatic climate of Mars.
    Earth's Oldest Rocks Confirmed in Northern Canada
    A recent study published in the journal Science confirms that the oldest rocks on Earth are located in northern Quebec, Canada, dating back 4.16 billion years. Lead author Jonathan Nally. from the University of Ottawa explains how this discovery provides a unique window into the Hadean Eon, offering insights into the early Earth's environment and the formation of its first continents. While the Jack Hills Range in Australia holds the oldest material of terrestrial origin, these Canadian rocks are pivotal in understanding Earth's formative years.
    New Insights into Hot Jupiter Formation
    We explore the intriguing case of CI Tau B, a hot Jupiter that orbits a young star just 450 light-years away. Researchers from Rice University and Lowell Observatory have utilized advanced spectroscopic techniques to analyze the planet's mass and brightness, revealing that it formed through a hot start mechanism rather than traditional models. This study provides a critical benchmark for understanding how giant planets can form rapidly in close proximity to their stars, challenging long-held assumptions in planetary science.
    Was Mars Always Doomed to be a Desert?
    A new hypothesis from the University of Chicago suggests that Mars was never meant to remain a warm, habitable planet. The study indicates that the planet's past liquid water periods were likely short-lived, driven by the Sun's gradual brightening. Unlike Earth, which has maintained its habitability, Mars appears to self-regulate towards desert conditions, raising questions about the mechanisms that have led to its current frozen state. The findings, published in Nature, build on previous discoveries by NASA's Curiosity rover and could reshape our understanding of Martian climate history.
    www.spacetimewithstuartgary.com
    ✍️ Episode References
    Science Journal
    https://www.sciencemag.org/
    Astrophysical Journal Letters
    https://iopscience.iop.org/journal/1538-4357
    Nature Journal
    https://www.nature.com/nature
    Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.
    Más Menos
    24 m
  • Celestial Phenomena: The Largest Oort Cloud Comet and Mars Perseverance's Milestones

    Celestial Phenomena: The Largest Oort Cloud Comet and Mars Perseverance's Milestones
    Jul 9 2025
    In this episode of SpaceTime, we explore some of the most exciting recent discoveries in astronomy, including the largest Oort Cloud comet ever observed and remarkable achievements from NASA's Mars Perseverance Rover.
    Comet C/2014 UN271 Bernardinelli-Bernstein: A Giant from the Oort Cloud
    Astronomers have made a groundbreaking discovery by detecting molecular activity in Comet C/2014 UN271 Bernardinelli-Bernstein, the largest and most distant active comet ever observed. Originating from the Oort Cloud, this colossal comet measures nearly 140 km across, revealing complex jets of carbon monoxide gas and providing insight into its behavior far from the Sun. Observations from the Atacama Large Millimeter/Submillimeter Array (ALMA) in Chile have confirmed its status as the largest known Oort Cloud comet, offering a rare glimpse into the chemistry and dynamics of these distant celestial objects.
    Nasa's Perseverance Rover Sets New Distance Record
    NASA's Mars Perseverance Rover has achieved a new milestone, traveling 411 meters in a single autonomous drive while exploring the Jezero Crater. This episode highlights the rover's innovative AUTONAV self-driving system and its 30th Abrasion Study of a Martian rock named Kenmore. The findings reveal significant mineral compositions, including clay minerals, iron, and magnesium, enhancing our understanding of Mars' geological history and potential past habitability.
    Exoplanets Triggering Stellar Flares
    Astronomers have discovered that certain exoplanets in close orbits around their host stars can trigger powerful stellar flares, leading to atmospheric erosion over time. This groundbreaking finding, reported in the journal Nature, demonstrates the interaction between planets and their stars in a way never before observed. The study, conducted using the European Space Agency's CHEOPS spacecraft, reveals that these energetic flares can significantly impact the evolution of the orbiting planets, providing new insights into the dynamics of stellar systems.
    www.spacetimewithstuartgary.com
    ✍️ Episode References
    Astrophysical Journal Letters
    https://iopscience.iop.org/journal/1538-4357
    NASA Perseverance Rover
    https://mars.nasa.gov/mars2020/
    Nature Journal
    https://www.nature.com/nature
    Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.
    Más Menos
    23 m
  • Interstellar Discoveries: The Arrival of Comet 3I Atlas and the Mars Sample Race

    Interstellar Discoveries: The Arrival of Comet 3I Atlas and the Mars Sample Race
    Jul 7 2025
    In this episode of SpaceTime, we dive into the latest astronomical discoveries and the implications for future space exploration.
    New Interstellar Visitor: Comet 3I Atlas
    Astronomers have identified a new interstellar object, designated 3I Atlas, which is currently traversing our solar system. Discovered by NASA's ATLAS telescope in Chile, this comet is approximately 670 million kilometers away and poses no threat to Earth, as it will pass at a safe distance of 240 million kilometers. With a velocity exceeding 51 kilometers per second, 3I Atlas is only the third confirmed interstellar visitor, following the enigmatic Oumuamua and the more familiar comet 2I/Borisov. As observations continue, scientists are eager to learn more about its origins and characteristics.
    China's Ambitious Mars Sample Return Mission
    Speculation is mounting that China may outpace the U.S. and Europe in the race to return the first samples from Mars. The recently announced Tianwen 3 mission aims to collect Martian samples and bring them back to Earth for detailed analysis, potentially revealing whether life ever existed on the Red Planet. This mission follows China's successful deployment of the Zhurong rover and highlights the ongoing competition in space exploration. Scientists will need to target specific locations on Mars to collect samples that could provide insights into the planet's past habitability.
    Vera C Rubin Observatory's Stunning First Images
    Astronomers are thrilled by the first images released by the Vera C Rubin Observatory, which features an 8.4-meter telescope and a 3,200-megapixel camera. This observatory is set to conduct the world's largest sky survey over the next decade, generating an astonishing 20 terabytes of data each night. The Legacy Survey of Space and Time will provide unprecedented insights into cosmic phenomena, including asteroids, supernovae, and the mysteries of dark matter and dark energy. Australian astronomers are collaborating in this global effort, processing and analyzing the vast amounts of data generated.
    www.spacetimewithstuartgary.com
    ✍️ Episode References
    NASA ATLAS
    https://www.nasa.gov/
    China's Tianwen 3 Mission
    https://www.space.com/china-mars-sample-return-tianwen-3
    Vera C Rubin Observatory
    https://www.lsst.org/
    Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.
    Más Menos
    26 m
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