Sunita 'Suni' Williams and Barry 'Butch' Wilmore are headed back to Earth after nine months on the ISS – but their greatest ...

Space changes the human body in many ways. From bone loss to bloated faces, here's how microgravity and radiation affect the ...

WASHINGTON-The human body was not built for space flight, with its microgravity conditions, exposure to high-energy radiation and other issues. As a result, trekking beyond the Earth’s confines ...