ALT The Artemis II Orion crew module sits on a stand inside the Multi-Payload Processing Facility at NASA\u2019s Kennedy Space Center. Several technicians stand on mobile platforms and ladders around the spacecraft, inspecting its darkened exterior. Additional personnel stand nearby with tripods and equipment. The room contains tools, hardware, and machinery arranged around the perimeter, with white walls and a high ceiling. Photo credit: NASA/Ben Smegelsky

ALT A close-up view of NASA\u2019s Orion spacecraft from the Artemis II mission shows a technician carefully inspecting the capsule\u2019s darkened backshell tiles with a lighted magnifier. Another team member stands nearby as the spacecraft undergoes de-servicing inside Kennedy Space Center\u2019s Multi-Payload Processing Facility. Photo credit: NASA/Ben Smegelsky

ALT A crescent Earth setting behind the Moon\u2019s horizon. Credit: NASA

ALT Earth setting behind the Moon as seen by the Artemis II crew. Over half the left side of the image is filled by the gray lunar surface, pocked with craters. Credit: NASA

ALT A close view of the Moon. Jagged circles of craters dot the gray surface, fading to dark on the left side of the image. Credit: NASA

ALT A crescent Earth setting behind a hemisphere of the Moon. Credit: NASA