Scientists may have made an "out of this world" discovery. New research suggests that a mysterious glow in our galaxy might be caused by dark matter, an invisible form of matter believed to be five ...
The Chandra X-ray Observatory view of galaxy group NGC 4839 has revealed that it is "plunging into the Coma galaxy cluster ...
The Andromeda galaxy, our closest spiral neighbor to the Milky Way, becomes prominently visible in the night sky during ...