NASA astronauts Sunita "Suni" Williams and Barry "Butch" Wilmore have been on the International Space Station since June, even though they initially expected to stay for just eight days. They'll be back on Earth in late March.

Nasa astronauts Sunita Williams and Butch Wilmore completed a record-setting 5.5-hour spacewalk outside the ISS, adding to Williams' impressive achiev

NASA astronauts Suni Williams and Butch Wilmore were able to remove a stuck radio communications unit on a record-setting spacewalk on Thursday (Jan. 30).