Solar Eclipses, Speeding Comets & The Enigma Of Cosmic Event Horizons Space Nuts: Astronomy Insights & Cosmic Discoveries podcast

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Solar Eclipses, Speeding Comets & the Enigma of Cosmic Event Horizons

3d ago 41:29

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Q&A Edition: Sun-Moon Coincidences, Cosmic Event Horizons, and Hoag's Object
In this thought-provoking episode of Space Nuts, hosts Andrew Dunkley and Professor Jonti Horner tackle intriguing questions from listeners that explore the wonders of the cosmos. From the fascinating similarities between the Sun and the Moon to the mysterious nature of Hoag's Object, this episode is filled with scientific insights and engaging discussions.
Episode Highlights:
- Sun and Moon Coincidences: Andrew and Jonti delve into the remarkable coincidences between the Sun and the Moon, including their similar apparent sizes and rotation rates. They discuss the implications of these coincidences for future lunar habitation and solar radiation protection.
- Speeding Through Space: Trevor’s question leads to an exploration of how fast comets and spacecraft can travel. The hosts discuss gravitational assists and the potential for achieving incredible speeds, as well as the limits imposed by the physics of motion and the expansion of the universe.
- Hoag's Object Unveiled: Austin's inquiry about Hoag's Object prompts a discussion about this unique ring galaxy. Andrew and Jonti analyze its stunning symmetry and the theories surrounding its formation, including the possibility of a high-speed collision between galaxies.
- Understanding Cosmic Event Horizons: Dan's question about cosmic event horizons sparks a deep dive into the boundaries of the observable universe. The hosts clarify the concepts of event horizons, including the limitations of what we can see due to the expansion of the universe.
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