News

Climate

Tropical forests have flipped from sponges to sources of carbon dioxide

Analyses of satellite images suggest that degraded forests now release more carbon than they store.

Physics

Trio of detectors tracks gravitational waves to their home

LIGO and Virgo spot spacetime ripples in their first joint detection.

Tech

Origami outfits help these bots change tasks swiftly

These robots change shape by slipping into different origami exoskeletons.

Animals

To test sleep, researchers don’t let sleeping jellyfish lie

Upside-down jellyfish are the first known animals without a brain to enter a sleeplike state.