Sacrificed Inca children died very differently than we thought, study finds - Live Science

The ancient Egyptians practiced human sacrifice around 5,000 years ago, a new study finds.

A newly discovered exoplanet orbits its star backward, and it's a mystery why. The system and others like it could shed light on how some complex planetary systems form.

'It was Ozzy's goodbye, and he knew it was his goodbye. My kids didn't know. We didn't tell the children. We didn't tell anyone.'

The spacecraft delivered materials and equipment for new research studies to the station.