NASA astronaut Christina Koch takes an out-of-this-world "space-selfie" with the Earth behind her.
NASA astronaut Jessica Meir waves at the camera during a spacewalk with fellow NASA astronaut Christina Koch (out of frame).
NASA astronaut Jessica Meir prepares to exit the crew lock portion of the Quest airlock into the vacuum of space.
Vice President Mike Pence delivers remarks during the opening ceremony of the 70th International Astronautical Congress.
From the Mission Control Center in Houston, veteran NASA astronauts Stephanie Wilson and Mark Vande Hei are on the CAPCOM…
NASA astronaut Andrew Morgan (right) took a break from his engineering and science duties aboard the International Space Station to…
NASA astronaut Andrew Morgan (right) took a break from his engineering and science duties aboard the International Space Station to…
NASA astronaut Jessica Meir is inside the crew lock portion of the U.S. Quest airlock ready to begin her first…
NASA astronaut Jessica Meir conducts her first spacewalk at the International Space Station.
NASA astronaut Christina Koch conducts her fourth spacewalk at the International Space Station.
