Iron meteorites show the first bodies of the early solar system were 83% to 92% dry rock, with water arriving millions of ...

This video is an artistic representation of a newly discovered system, LHS 3154, which contains a planet far more massive for its sun than current models would predict. UNIVERSITY PARK, Pa. – The ...

An image from the ALMA telescope array in Chile shows jets of silicon monoxide blowing away from the young star HOPS-315. The blue jet is moving towards Earth, and the red jet is moving away from us.

Before Earth existed — before the Sun ignited — ancient stars lived out their full lives, forged their elements, and died. A study published July 29 in Science Advances now shows that some of their ...