Starliner co-pilot Sunita Williams is now the world's most experienced female spacewalker, moving up to No. 4 overall.

Astronauts Suni Williams and Butch Wilmore, who have been on an unexpectedly monthslong assignment after serving on Boeing’s Starliner crewed test flight, are conducting a spacewalk Thursday. The duo is venturing outside the International Space Station to remove degraded radio communications hardware.

Elon Musk says Donald Trump has asked SpaceX to rescue two astronauts who have been in space for more than seven months — even though NASA has said there's a plan in place.

NASA's two stuck astronauts are taking their first spacewalk together, exiting the International Space Station almost eight months after moving in

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.

Astronauts Butch Wilmore and Suni Williams are conducting a spacewalk outside the International Space Station to remove degraded hardware and swab for microorganisms.