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 Rapid Spin: The Shortest Day Ever Recorded and the Eris-1 Rocket Launch

    Earth's Rapid Spin: The Shortest Day Ever Recorded and the Eris-1 Rocket Launch
    Jul 14 2025
    Sponsor Details
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    In this episode of SpaceTime, we explore some fascinating recent developments in our understanding of Earth and beyond.
    Earth Experiences Its Shortest Day
    On July 9, Earth recorded one of its shortest days, with a rotation 1.51 milliseconds shorter than the average. We discuss how various factors, including gravitational influences from the Moon and Sun, tectonic movements, and even human activities, affect Earth's rotation. This episode also highlights the implications of these changes on our timekeeping systems and the necessity of leap seconds to maintain accuracy in clocks and navigation systems.
    Gilmour Space's Ares 1 Rocket Launch Preparations
    Gilmour Space is gearing up for the maiden test flight of its Ares 1 orbital rocket after previous launch attempts were postponed due to technical glitches and weather conditions. We delve into the rocket's design, which includes a unique hybrid propulsion system, and discuss the significance of this launch as Australia’s first all-Australian designed and built launch vehicle since the 1970s.
    Revising Earth's Geological Timeline
    A groundbreaking study suggests that Earth's first solid crust formed from a magma ocean around 4.5 billion years ago, shortly after a massive impact event that created the Moon. This research challenges long-held beliefs about the formation of continents and the onset of plate tectonics, indicating that the chemical signatures of continental crust may have originated much earlier than previously thought. We explore the implications of this study for our understanding of Earth's early geological history and the evolution of life.
    www.spacetimewithstuartgary.com
    ✍️ Episode References
    Nature Journal
    https://www.nature.com/nature
    NASA
    https://www.nasa.gov/
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    29 m
  • 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.
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    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
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