'Groupie' galaxies orbiting Milky Way tell us about dark matter, how galaxy formed
Phys.org -

We live in a big-city galaxy. The Milky Way is so big it has satellite galaxies that orbit it, just as the Moon orbits the Earth. These arrangements tell us a great deal about the secrets of the universe—from how galaxies form to the mysterious nature of dark matter.

Read this story at

Loading...

Related Articles