Scientists using three telescopes spaced thousands of miles apart have caught the best look ever of the center of a distant quasar, an ultra-bright galaxy with a giant black hole at its core. By ...

The Dwingeloo telescope, designed to observe signals at low frequencies, detected the farthest human spacecraft when it went dark earlier this year. Reading time 2 minutes Voyager 1 is currently ...

The Earth supports the only known life in the universe, all of it depending heavily on the presence of liquid water to facilitate chemical reactions. While single-celled life has existed almost as ...