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Scientists Just ‘Looked’ Inside Mars. Here’s What They Found | WIRED
InSight and Perseverance have sent back unprecedented data on everything from marsquakes to the Red Planet’s inner layers. By Katrina Miller Matt Simon, Science, 07.22.2021 02:00 PM While humans have been struggling to control the Covid-19 pandemic, baking in record heat, and trying to figure out how not to run out of water, our spacecraft…
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Upheaval and extinctions linked to magnetic reversal 42,000 years ago | Earth | EarthSky
Posted by Kelly Whitt in Earth | Human World | February 20, 2021 A magnetic reversal 42,000 years ago helped bring about earthly extinctions, scientists said, accompanied by changes in the sky including electrical storms and widespread auroras. A new international study suggests that a magnetic field reversal – combined with changing solar winds –…
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Crisis Ensued The Last Time Earth’s Magnetic Poles Flipped, Researchers Say : NPR
An ancient, well-preserved tree that was alive the last time the Earth’s magnetic poles flipped has helped scientists pin down more precise timing of that event, which occurred about 42,000 years ago. This new information has led them to link the flipping of the poles to key moments in the prehistoric record, like the sudden…
