NASA astronauts sent a “Merry Christmas” message to Earth from the International Space Station. Suni Williams and Butch ...

Astronauts on the International Space Station send a festive message from orbit, some 250 miles (400km) above Earth.

The International Space Station "continues to orbit the Earth as planned, and the crew aboard is safe," NASA said.

Atmospheric waves discovered from the International Space Station 55 miles above Earth, revealing new connections to Earth's ...

Watch astronauts answer student questions about space research and daily life aboard the Station—live from space!

The International Space Station is an engineering feat that has led to countless scientific discoveries. Like the thousands of satellites in orbit, it manages to stay up in the atmosphere.

Scientists take a bold step in understanding life beyond Earth by studying reproduction in space. Mouse sperm aboard the ISS ...