NASA astronauts Christina Koch and Jessica Meir prepare for a spacewalk

iss061e006680 (Oct. 12, 2019) --- NASA astronaut Christina Koch (left) poses for a portrait with fellow Expedition 61 Flight Engineer Jessica Meir of NASA who is inside a U.S. spacesuit for a fit check. The duo is preparing for their first spacewalk together planned for Oct. 18 to replace a failed power controller on the International Space Station's P6 truss structure.