Human hearts could be grown in space to use in transplants and save lives on planet earth, British astronaut Tim Peake said.

On April 27, the moon blocked 23 percent of the sun in a partial eclipse, but it was not possible to see this from Earth.

Named Eos, the cloud of gas would appear huge in the night sky if visible to the naked eye and could shed light on solar ...

The images, which range from rivers, mountains, islands or lakes, were all captured by one of NASA's Earth-observing ...