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Health & Medicine

Drinking studies muddied the waters around the safety of alcohol use

Studies claiming that alcohol in even small amounts is dangerous weren’t designed to address risks of moderate drinking.

Planetary Science

A buried lake on Mars excited and baffled scientists

Planetary scientists are still trying to explain how a lake could have formed beneath a kilometer and a half of Martian ice.

Neuroscience

Zapping the spinal cord helped paralyzed people learn to move again

A handful of people paralyzed from spinal cord injuries have learned to walk again.

Anthropology

Human smarts got a surprisingly early start

Human ingenuity began on treks across Asia and in fluctuating African habitats.