Researchers have spent the past few years watching a black hole re-awaken roughly 300 million light-years away from Earth.

For example, during an explosive space battle scene in Star Trek, a crew member is tossed out into space and suddenly into ...

Combining with one other previously confirmed planet, one of our closest stellar neighbors now has a family of four.

You can make the case that none of them are in true color. But then again, if they were, they’d be unable to reveal the true nature of objects emitting or reflecting various kinds of otherwise ...

They are objects so massive they warp space and time to a point that even light cannot escape their pull, making them invisible. In the past, astronomers have found them by using X-ray and radio ...

Scientists have observed a previously inactive supermassive black hole producing regular, powerful X-ray eruptions that ...

A team of astronomers from England used that farthest point to determine that the diameter of the Milky Way is 1.9 million light-years ... found its far edge.Using nearby galaxies as a guide ...

Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 ...

But now we know that a single day on Uranus is 28 seconds longer than astronomers ... using the planet’s aurorae. Just like Earth’s northern and southern lights, these spectacular light ...