Former astronaut Chris Hadfield has explained what the readjustment period will be like for Barry Wilmore and Sunita Williams ...

Down to their very DNA, astronauts’ bodies can change in weird and sometimes significant ways, particularly during a long flight high above the Earth: They start to elongate, often developing a taller ...

NASA astronaut Don Pettit captured this stunning long-exposure view of Earth and stars from space at night from the International Space Station.

While Sunita Williams and Butch Wilmore eagerly await their return to Earth, they are likely to face physical complications ...