News
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PaleontologyHow birds may have escaped the dino-killing asteroid impact
A tree-loving lifestyle became a risk for ancient birds in a world-changing catastrophe.
By Susan Milius -
PaleontologyThe Chicxulub asteroid impact might have set off 100,000 years of global warming
About 66 million years ago, the Chicxulub asteroid impact set off 100,000 years of global warming, an analysis of oxygen in fish fossils suggests.
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AstronomyPlasma rain in the sun’s atmosphere falls in surprising places
Scientists found rain in the sun’s corona where they didn’t expect it, which could help solve the mystery of why the corona is so hot.
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GeneticsGenetic sleuthing again IDs a murder suspect in a cold case
The arrest of a second murder suspect with the help of genetic genealogy raises worries that suspicionless searches may be next.