Snowball Earth, Dinosaur Asteroids & the Hubble Tension Unravelled | Space Nuts: Astronomy...

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Frozen Frontiers: Snowball Earth, Dinosaur Origins, and Hubble Tension

In this captivating holiday episode of Space Nuts , hosts Andrew Dunkley and Professor Fred Watson embark on a journey through time and space, discussing the intriguing concept of Snowball Earth, the origins of the dinosaur-killing asteroid, and the ongoing debate surrounding the Hubble tension in cosmology.

Episode Highlights:

- Snowball Earth: Andrew and Fred explore the fascinating theory of Snowball Earth, a period when our planet was completely frozen over, and how recent geological findings in Scotland and Australia shed light on this icy epoch.

- Dinosaur-Killing Asteroid Origins: The hosts delve into the latest research pinpointing the Chicxulub impactor's origins within the asteroid belt, revealing the chemical markers that help trace its journey through the solar system.

- The Hubble Tension: A discussion on the so-called crisis in cosmology, as the hosts dissect the differing measurements of the universe's expansion rate and how new data from the James Webb Space Telescope may provide clarity.

- Listener Questions: The episode wraps up with engaging listener questions, including a fascinating inquiry about the impact of a frozen Earth on its diameter, prompting a thoughtful discussion on planetary changes over time.

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Stay curious, keep looking up, and join us next time for more stellar insights and cosmic wonders. Until then, clear skies and happy stargazing.

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Episode link: https://play.headliner.app/episode/30732090?utm_source=youtube