A microquasar belonging to our Milky Way galaxy has set records by generating cosmic rays with energy levels never before seen.

The Andromeda galaxy, also known as Messier 31 (M31), is the closest spiral galaxy to the Milky Way at a distance of about ...

Two meteor showers will peak at the same time in July with the cosmic glow of our galaxy serving as the backdrop. Here's how to see the month's top astronomical sights.