Layers of sediment in New Jersey & Arizona reveal the exact orbital motions of Earth & Mars 200 million years ago. That's some truly amazing sleuthing! https://t.co/IIySGopWDS pic.twitter.com/j1qVZPb3nJ
— Corey S. Powell (@coreyspowell) April 29, 2019
via Twitter https://twitter.com/coreyspowell
April 29, 2019 at 06:31PM
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