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 astronaut Sunita Williams and Butch Wilmore on Thursday stepped out of the International Space Station (ISS) for 5.5-hour spacewalk, setting a new record, the US space agency said.

NASA astronauts Sunita Williams and Butch Wilmore removed a broken ISS antenna during their first spacewalk together. Williams set a new female spacewalking record, extending their mission due to Starliner delays.