NASA's Suni Williams — one of two astronauts stuck for months at the International Space Station — has retired.

NASA's celebrity astronauts Butch Wilmore and Suni Williams say they would fly on Boeing's Starliner capsule again.

Saturday marks the 55th anniversary of the Apollo 11 moon landing by Neil Armstrong and Buzz Aldrin.

NASA is canceling a water-seeking moon rover because of cost overruns and launch delays.

Four volunteer crew members who spent more than 12 months inside NASA’s first simulated Mars environment at Johnson Space Center in Houston have emerged from the artificial alien enviroment.

A space capsule carrying NASA’s first asteroid samples has landed in the Utah desert.

NASA has named the four astronauts who will fly around the moon by the end of next year.

NASA's Orion capsule has reached the moon, whipping around the far side and passing within about 80 miles.

NASA’s Johnson Space Center in Houston, Texas will be hosting a meeting of the National Space Council Friday.

NASA has picked 10 new astronauts, half of them military pilots, as it looks ahead to the moon and Mars.