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Space Nuts: Astronomy Insights & Cosmic Discoveries

Space Nuts: Astronomy Insights & Cosmic Discoveries

Von: Professor Fred Watson and Andrew Dunkley
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  • 5 million downloads and counting
  • 90+% Five Star Reviews
  • Hosted by Astronomer At Large, Professor Fred Watson and Sci-Author/Broadcaster Andrew Dunkley
  • 660 Episodes and counting
  • Very active (and friendly) listener community
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  • Time Dilation & Cosmic Mysteries: Unpacking Your Space Queries

    Time Dilation & Cosmic Mysteries: Unpacking Your Space Queries
    Oct 13 2026
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    Space Nuts: Fast-Moving Planets, Photon Pressure, and the Nature of Moons
    In this engaging Q&A episode of Space Nuts, hosts Andrew Dunkley and Professor Fred Watson tackle a series of intriguing listener questions. Kicking off with Ron's query about the implications of living on a super fast-moving planet orbiting Sagittarius A*, they delve into the fascinating world of time dilation and its effects on scientific observations. Next, Jeff from Colorado poses a thought-provoking question regarding photon pressure and its potential influence on the universe's expansion, leading to a discussion on dark energy and cosmic mysteries. Brian from the Gold Coast wonders about the visibility of cosmic microwave background radiation behind black holes, while Bob rounds off the episode with a query on the characteristics that define a moon. Join Andrew and Fred Watson as they navigate these cosmic curiosities with their trademark wit and insight.
    Key topics
    - The effects of high-speed planetary motion near a black hole on time and observational science.
    - Exploring photon pressure and its relationship to the universe's expansion and dark energy.
    - The cosmic microwave background radiation and its interaction with black holes.
    - Defining moons: How small and irregular can they be while still being classified as moons?
    Timestamps
    00:00 - Introduction and overview of listener questions
    01:20 - Ron’s question about living on a fast-moving planet and time dilation effects
    15:30 - Jeff’s inquiry into photon pressure and its impact on cosmic expansion
    25:00 - Brian’s question regarding cosmic microwave background radiation and black holes
    35:15 - Bob’s exploration of what constitutes a moon
    45:00 - Closing thoughts and listener engagement

    Become a supporter of this podcast: https://www.spreaker.com/podcast/space-nuts-astronomy-insights-cosmic-discoveries--2631155/support.
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    27 Min.
  • Strange Spins and Cosmic Rings: Exploring NGC 4698 and Chariklo's Secrets

    Strange Spins and Cosmic Rings: Exploring NGC 4698 and Chariklo's Secrets
    Oct 12 2026
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    Space Nuts: Unraveling the Mysteries of NGC 4698 and Chariklo's Rings
    In this exciting episode of Space Nuts, hosts Andrew Dunkley and Professor Fred Watson explore some truly peculiar cosmic phenomena. They kick off with a deep dive into the strange behaviour of the galaxy NGC 4698, known for its unusual rotational patterns and mysterious bulge, leading to discussions about possible galactic mergers. Next, the duo ventures into the intriguing world of Chariklo, a centaur object with changing rings, as they discuss the latest observations from the James Webb Space Telescope and the implications of its unique ring structure. Join Andrew and Fred Watson as they navigate these captivating astronomical tales with their signature blend of humour and insight.
    Key topics
    - The peculiar characteristics of NGC 4698: What makes this galaxy behave strangely?
    - Insights into the dynamics of galaxy mergers and their effects on structure.
    - Chariklo's rings: How have they changed since their discovery, and what does this mean for our understanding of ring systems?
    - The potential existence of a hidden moon influencing the structure of Chariklo's rings.
    Timestamps
    00:00 - Introduction and overview of today's topics
    01:20 - Discussion on the peculiar galaxy NGC 4698 and its unusual features
    15:30 - Exploring Chariklo and the changes in its ring system
    25:00 - Insights from the James Webb Space Telescope and the hidden moon hypothesis
    35:15 - Final thoughts and listener engagement

    Wanting a commercial free option of Space Nuts? Become a supporter of this podcast: https://www.spreaker.com/podcast/space-nuts-astronomy-insights-cosmic-discoveries--2631155/support.
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    35 Min.
  • Time Travel & Cosmic Questions: The Science Behind Our Universe

    Time Travel & Cosmic Questions: The Science Behind Our Universe
    Oct 9 2026
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    Space Nuts: Time Travel, Orbiting Telescopes, and Gold Origins
    In this Q&A episode of Space Nuts, hosts Andrew Dunkley and Professor Fred Watson tackle a range of thought-provoking listener questions. They begin with a fascinating inquiry from Andy, a train driver in the UK, about the implications of time travel at relativistic speeds. What does it mean to age differently when travelling close to the speed of light? The duo then dives into the mechanics of orbiting telescopes, addressing Nick's questions about how these instruments manage their observations while minimising interruptions from Earth. Finally, Ash from Brisbane poses an intriguing question about the origins of gold, prompting a discussion on neutron star collisions and the cosmic processes that create heavy elements.
    Key topics
    - Time travel and the effects of relativistic speeds on aging: Can we really travel through time?
    - The scheduling and operational strategies of orbiting telescopes like Hubble: How do they maximise observation time?
    - The origins of gold in the universe: What role do neutron star collisions play in the creation of heavy elements?
    Timestamps
    00:00 - Introduction and overview of listener questions
    01:20 - Andy’s question on time travel and relativistic speeds
    15:30 - Nick’s inquiry about orbiting telescopes and their observation strategies
    25:00 - Ash’s question regarding the origins of gold and neutron star collisions
    35:15 - Final thoughts and listener engagement

    Become a supporter of this podcast: https://www.spreaker.com/podcast/space-nuts-astronomy-insights-cosmic-discoveries--2631155/support.
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    30 Min.
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