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Did an asteroid impact dam up the Grand Canyon 56,000 years ago?
Jul 17, 2025
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Did an asteroid impact dam up the Grand Canyon 56,000 years ago?

The Meteor Crater asteroid impact may have created an ancient lake. Also, Arctic sea ice again way too low

Philip Plait
Philip Plait
climate changeclimate change
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The Sun’s south pole seen for the first time!
Jul 15, 2025

The Sun’s south pole seen for the first time!

Previously hidden by geometry, the Sun’s austral pole is revealed. Bonus: some (rare) good climate news!

Philip Plait
Philip Plait
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