From left, Expedition 75 crewmates Sophie Adenot of ESA (European Space Agency) and Jessica Meir of NASA, flight engineer and station commander respectively, smile for a portrait while working together inside the International Space Station’s Quest airlock. Meir is holding a camera covered in a protective thermal blanket that shields it from space radiation, as the two astronauts prepare spacesuits and tools for a spacewalk they conducted together on Sept. 1.图:NASA · NASA Image and Media Guidelines