A California startup wants to use giant orbiting mirrors to reflect sunlight onto Earth after dark. The first test satellite ...

NASA's towering SLS rocket that will help propel four astronauts on a historic journey around the moon is now visible at the ...

Optical proof of a tiny companion orbiting supergiant star Betelgeuse is hard to come by. Hubble just spotted new evidence.

Harvard's Avi Loeb reveals 3I/ATLAS has symmetric mini-jets at 120-degree intervals. Could these be propulsion thrusters on ...

A geomagnetic reversal sounds like science fiction until the rock record says it has happened before. The real tension sits ...

SpaceX is gearing up for the launch of a private lunar lander set to embark on a historic journey to the Moon.

Mock observations test the performance of the Chinese Space Station Telescope as the 2-meter-class observatory moves closer ...

Protoplanetary disks are the birthplaces of planets, but few discoveries have stretched scientific expectations like IRAS ...

Former Google CEO Eric Schmidt and his wife, Wendy, recently announced that they would finance, out of their own pocket, a ...

University of Chicago astronomy and astrophysics professor Donald G. York​, who is credited with pioneering contributions to ...