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ArchaeologyAn ancient pouch reveals the hallucinogen stash of an Andes shaman
South American shamans in the Andes Mountains carried mind-altering ingredients 1,000 years ago, a study finds.
By Bruce Bower -
PhysicsLIGO is on the lookout for these 8 sources of gravitational waves
Gravitational wave hunters are on a cosmic scavenger hunt. Here’s what they’re hoping to find.
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Science & SocietyMedical student evaluations appear riddled with racial and gender biases
Women and minorities are more frequently described by personality in medical student evaluations, but men are described by their skills, a study says.
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