Sunita Williams, who has been aboard the International Space Station (ISS) for over eight months, recently shared her experiences of prolonged microgravity. Originally scheduled for an eight-day mission,

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.