Astronomers deployed the Hubble Space Telescope over the course of a decade to conduct 600 separate observations to produce ...

A decade of observations by NASA’s Hubble Space Telescope has produced the sharpest and most detailed images of the Andromeda ...

Our Milky Way could have many more satellite galaxies than we've detected so far. They're just too faint to be seen.

Discover the wonders of space with Celestia, the free simulator that brings the cosmos to life. Explore over 100,000 stars, ...

Hidden in the ‘Infinity Galaxy,’ a black hole floats in space where none should exist, upending old ideas about black hole birth.

For centuries, people have looked to the stars, asking how it all began—and how it might end. Now, thanks to a bold new study ...