NASA astronaut Terry Virts (left) and European Space Agency astronaut Samantha Cristoforetti, both Expedition 42/43 flight engineers, attired in training versions of their spacesuits, participate in a spacewalk training session in the waters of the Neutral Buoyancy Laboratory near NASA's Johnson Space Center (nasajohnson). Divers are in the water to assist Virts and Cristoforetti in their rehearsal, which is intended to help prepare them for work on the exterior of the International Space Station (iss). This on-Earth training is essential in preparing space station and Artemis astronauts to learn how to safely live and work in environments off of Earth. ⁣ ⁣ Learn more about NASA’s bold new missions to land humans on the Moon in 2024: nasa.gov/Artemis ⁣ ⁣ Credit: NASA/Bill Stafford⁣ ⁣ #nasa #artemis #spacesuits #diver #training #astronauts #space #iss