The Milky Way is so large that our usual sense of distance completely breaks down. This episode scales up from our local neighborhood to the full structure of the galaxy, revealing just how vast our ...

Astronomers used cosmic explosions to find that we may be wrong about our own galaxy.

The Milky Way’s farthest spiral arms have long been sketched more from motion than measurement. Now three violent explosions ...

Using data from NASA’s Chandra X-ray Observatory and the European Space Agency’s XMM-Newton, a team of researchers made ...