"With only lunar soil and a basic ingredient from the sun — which is always spitting out hydrogen — there's a possibility of ...

A dazzling snapshot from ESO’s Paranal Observatory captures a rare sky parade — the Moon, a comet, and nearly every visible planet strung across the heavens. This celestial lineup is an optical ...

Recent flybys of the fiery world refute a leading theory of its inner structure — and reveal how little is understood about ...

Skywatchers worldwide are in for a charming cosmic display before the sun rises Friday, as three celestial bodies will appear ...