A spacecraft, Crew-12, is in operation, with its launch having occurred, although the specific timing is not certain. The mission involves astronauts, with some having departed the International Space Station, and is focused on studying the effects of microgravity. The crew's activities and goals may be related to longer-term plans, including an 8-month mission to study the moon and mars, although details of the current mission and its connection to these plans are unclear.