The International Space Station saw its longest-ever crew depart today, after a record-setting stay of 328 days in space. The crew of three, two from NASA and one from the European Space Agency, exited the Soyuz spacecraft to cheers and hugs from family and friends. Their mission included work on 250 experiments, including watching sea life adapt to increasing acid levels in the ocean. They also took part in spacewalks to maintain the station’s exterior. After spending nearly a full year in space, the crew headed back to Earth.