Virgin Galactic achieved a successful test flight of its rocket-powered spaceplane on Saturday, May 22, that saw the vehicle and its two pilots reach an altitude of 55.45 miles. The third powered ...

Add Yahoo as a preferred source to see more of our stories on Google. The curve of earth against the blackness of space, with part of a silvery spacecraft in the foreground. SPACEPORT AMERICA, New ...

The subject of this NASA/ESA Hubble Space Telescope image is situated in the Perseus Cluster, also known as Abell 426, 320 million light-years from Earth. It's a barred spiral galaxy known as ...

The Milky Way is home to gas, dust, billions of stars, and a supermassive black hole at its center. Living in this galactic home gives us exclusive insight into its components, but it also hinders our ...