Sunita “Suni” Williams and Barry “Butch” Wilmore, who have spent an unexpected eight months on the International Space Station (ISS)—took their first spacewalk together on Thursday. “Here we go,” said Wilmore as he emerged into space,

Starliner co-pilot Sunita Williams is now the world's most experienced female spacewalker, moving up to number four overall.

Astronauts Butch Wilmore and Suni Williams are conducting a spacewalk outside the International Space Station to swab the orbiting lab for evidence of microorganisms.

NASA’s two stuck astronauts took their first spacewalk together Thursday, exiting the International Space Station almost eight months after moving in. Commander Suni Williams and Butch Wilmore removed a broken antenna and wiped the station’s exterior for evidence of any microbes that might still be alive after launching from Earth and escaping through vents.