Earth and the entire Milky Way galaxy might be sitting inside an enormous, mysterious void—a giant cosmic hole making our universe expand faster right here than anywhere else. This unusual idea, ...

New supercomputer simulations suggest the Milky Way could be surrounded by dozens more faint, undetected satellite ...

Get all the news you need in your inbox each morning. "A black hole is so concentrated that it causes a little deep puncture in space/time. At the end of the puncture, you have a thing ...

New research suggests that the Milky Way may host more satellite galaxies than previously predicted, thanks to advanced ...