Throughout Earth's history, the planet has been struck by multiple asteroids, some so large, like the Chicxulub Impactor, that Earth's climate was altered to the point of a mass extinction event.
Proceedings of the National Academy of Sciences of the United States of America, Vol. 119, No. 17 (April 26, 2022), pp. 1-9 (9 pages) The Eocene–Oligocene Transition (∼33.9 Ma) marks the largest step ...
Geologists digging into the massive ice sheet of West Antarctica have discovered the remains of an ancient river system that once flowed for nearly a thousand miles. The discovery offers a glimpse ...
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