The "cosmic pinwheel" that astronomers feared could one day shower Earth with lethal gamma rays may not be as dangerous as ...

New data from a constellation of satellites 250 miles above Earth’s surface shows how solar and wind have taken off in recent ...

A quartet of small, rocky exoplanets likely circle Barnard's Star, around 6 billion light-years from Earth, putting them in ...

SpaceX launched yet another batch of its Starlink internet satellites to orbit from Florida this afternoon (March 18). A ...