Montgomery County Police say they've arrested a Silver Spring man who went around neighborhoods, repeatedly traumatizing residents by exposing himself.

Like a recording artist who has had a long career, NASA’s Chandra X-ray Observatory has a “back catalog” of cosmic recordings ...

Astronomers have discovered a remarkable new cosmic object using the Hubble Space Telescope: a cloud of dark matter and gas containing no stars, located about 14 million light-years away near the ...

Artist's concept of NASA's Pandora mission, which will help scientists untangle the signals from the atmospheres of exoplanets – worlds beyond our solar system – and their stars. Pandora, the latest ...