News

Anthropology

Snooze patterns vary across cultures, opening eyes to evolution of sleep

Sleep plays out differently across cultures, but a consistent cycle of z’s and activity appears crucial.

Plants

Big genetics study blazes path for bringing back tomato flavor

Combining taste tests with genetics suggests what makes heirloom varieties tastier than mass-market tomatoes.

Physics

New claim staked for metallic hydrogen

Scientists report transforming hydrogen into a metal at high pressure, but some experts dispute the claim.

Life

Mouse cells grown in rats cure diabetes in mice

Mixing cells of two species produces pig and cattle embryos with some human cells.