A new study suggests that the explosive deaths of the universe's earliest stars created surprising quantities of water that ...

See the epic view of the moon and Earth captured by the Orion spacecraft ahead of its outbound powered flyby. Credit: NASA / time-lapsed by Space.com's Steve Spaleta Music: Kepler's Hope by Year of th ...

By observing tiny ripples in spacetime called "gravitational waves" that propagate away from colliding black holes, ...

An international team of researchers has found dark matter dominating the halos of two supermassive black holes in galaxies ...