NASA astronaut returning to Earth after her record space station mission
Christina Koch and Jessica Meir's spacewalk last October marked the first time two women stepped out of the space station at the same time.
he International Space Station (ISS) crew member Christina Koch of the U.S. smiles after donning space suit check shortly before launch at the Baikonur Cosmodrome, Kazakhstan March 14, 2019(photo credit: REUTERS/SHAMIL ZHUMATOV)
