Astronomers have made an exciting breakthrough in the search for the universe’s most mysterious substance—dark matter. They ...

Astronomers have discovered a batch of nine new brown dwarfs, also known as "failed stars," including the two smallest examples of these curious celestial objects ever seen. The new find could help ...

"To do the bread-and-butter part of our job, as a scientist, the numbers that you send out have to really be well-measured, well-understood," Ajhar said. "And that takes a lot of time." Original ...

DARC is designed to track multiple small moving objects in geosynchronous orbit — all around the globe, 24 hours a day. A powerful new radar system designed to detect and track objects in distant ...