Astronaut Don Pettit, who has been at the International Space Station since September, is set to land Saturday in Kazakhstan ...

Where does water, a giver and taker of life on planet Earth, come from? When I was in junior high school, my science teacher taught us about the water cycle—evaporation from oceans and lakes ...

When astronauts return to Earth from space, they typically experience a number of physiological problems as a result of long ...

NASA astronauts Suni Williams and Butch Wilmore are home at last. They spent nine months orbiting Earth on the International Space Station. Long-term ISS missions aren't unusual, except these ...

A pod of dolphins were seen swimming near the SpaceX Dragon Capsule after it splashed down in the waters off Florida’s Gulf Coast.

Recent research published in the journal Geochimica et Cosmochimica Acta reveals that water reached Earth during the late stages of the planet's evolution from dust and gas, specifically during ...