Add Yahoo as a preferred source to see more of our stories on Google. The cosmic microwave background, the faint afterglow of the Big Bang that fills all of space, passes through massive galaxy ...

A blazing supermassive black hole can influence far more than its own galaxy. Scientists found that quasars emit radiation strong enough to shut down star formation in nearby galaxies millions of ...

A tiny object half a universe away, a scar in a stream of stars circling the Milky Way, and an unusual star cluster in a ...

New telescope instruments are pushing galaxy observation far beyond what was possible a decade ago. Advances in space telescope technology now allow astronomers to study billions of galaxies across ...

If you look across space with a telescope, you'll see countless galaxies, most of which host large central black holes, billions of stars and their attendant planets. The universe teems with huge, ...

Gravity behaves predictably in your daily life. Drop a ball, and it falls. Planets loop around stars. On paper, the same rules should also govern matter spread across the universe. But the farther ...