A pair of quasars that existed when the universe was only 3 billion years old has been spotted by the Hubble Space Telescope.

Two distant black holes will smash into each other, releasing more energy than 100 quintillion Earths full of TNT, and new research has just moved up the timeline for the explosion. Eric Mack has been ...

An artist's impression of the 14 galaxies detected by ALMA (Atacama large Millimter/submillimeter Array) telescopess as they appear in the very early, very distant universe, in this illustration ...

This cosmic explosion rippled through space-time. Finding more like it could solve mysteries such as the reason behind the universe's expansion. Jackson Ryan was CNET's science editor, and a multiple ...