Red giant Betelgeuse was yellow some 2,000 years ago

An interdisciplinary team centered around a Jena astrophysicist utilized observations from antiquity to prove that Betelgeuse—the bright red giant star in the upper left of the constellation Orion—was yellow-orange some ...

Mice living in sandy hills quickly evolved lighter coloration

In a vivid illustration of natural selection at work, scientists at Harvard University have found that deer mice living in Nebraska's Sand Hills quickly evolved lighter coloration after glaciers deposited sand dunes atop ...

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