METEORIC: Shards from a nearly 5-billion-year-old
meteorite (magnified in the background) that struck Earth about 250 million
years ago were a key piece of new research—led by Asish Basu, professor
of earth and environmental sciences—that suggests the impact nearly
wiped out life on Earth long before the demise of the dinosaurs. [More]
(Photo by Elizabeth Torgerson-Lamark)
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