Sunita Williams, one of the two NASA astronauts stranded on the ISS, completed her first spacewalk since arriving onboard seven months ago.

After the initial shock and disbelief, United States President-elect Donald Trump’s offer to acquire Greenland, through a ...

Plate tectonics give Earth its mountains, earthquakes, continental drift and maybe even helped give rise to life itself. But ...

"What If is an epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a ...

A Falcon 9 rocket carrying 27 Starlink craft is scheduled to lift off from California's Vandenberg Space Force Base today, ...