Despite making up most of the matter in the universe, dark matter doesn't interact with light. So how do astronomers know it is there?| Space
Scientists used a fossil relic left over from the Big Bang to perform the earliest detection of dark matter ever.| Space
These 'cosmic lighthouses' can spin as fast as 700 rotations per second.| Space.com
Beyond the limits of light: exploring the speed of light and the boundaries of faster-than-light travel| Space.com
Black holes are some of the most fascinating objects in the universe.| Space.com
NASA's forthcoming Nancy Grace Roman Telescope will hunt for "cosmic orphans," starless planets that might even outnumber their orbiting counterparts in our galaxy.| Space.com