In this image released Friday, Oct. 4, 2019, by NASA, astronauts Christina Koch, right, and, Jessica Meir pose on the International Space Station. The first all-female spacewalk is back on, six months after a flap over spacesuits led to an embarrassing cancellation. NASA announced Friday that the two U.S. astronauts aboard the International Space Station will pair up for a spacewalk later this month. (NASA via AP)