NASA's Sunita Williams sets new record for female astronaut spacewalk time, inspiring many. Her achievement comes amid challenges for the agency

Commander Sunita Williams and Butch Wilmore floated out to perform maintenance work and wipe the International Space Station’s exterior for evidence of any microbes that may still be alive after launching from Earth and escaping through vents.

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