NASA's remarkable new sample from Mars will help scientists get a better understanding of the planet's history and whether it ...

Stargazers will be treated to a dazzling six-planet "alignment" this January.

INDIANA, USA — Look up in mid-January just after sunset and you'll see a six-planet alignment: Four with your naked eye and two with a telescope. It's a six-planet parade! Tap HERE to track ...

The remaining dust and gas form a protoplanetary disk that encircles the new star, which slowly accretes to form systems of planets. For the past decade, astronomers have relied on the Atacama ...