WASHINGTON - Butch Wilmore and Suni Williams, the U.S. astronauts left on the International Space Station last year by Boeing ...

Is it easier to fall asleep in low gravity?” and other spaceflight questions, answered by two NASA sleep scientists.

NASA astronauts Butch Wilmore and Suni Williams are steadily recovering after spending nine unexpected months aboard the ...

The multi-billion dollar, decade-long undertaking, which still requires sign-off by President Vladimir Putin, calls for RUB4.5 trillion ($56 billion) in space spending, including RUB1 trillion for the ...

Fresh from space, NASA’s oldest full-time astronaut said Monday that weightlessness made him feel decades younger, with everyday aches and pains vanishing.