News

Earth

Ancient marine reptiles losing their cool

Warm-bloodedness may help explain the creatures’ evolutionary success, a new study suggests.

Space

Portrait of a youthful planet

New pictures confirm that astronomers have recorded a planet circling the star Beta Pictoris, making the orb the youngest, star-orbiting extrasolar planet to be photographed.

Ecosystems

Parasite brood gets help from nearby microbes

A critical interaction between whipworm and E. coli suggests a new way to battle the common gut infection.

Humans

Ancient shoe steps out of cave and into limelight

Excavations in an Armenian cave have uncovered the oldest known leather footwear, a 5,500-year-old shoe.