NASA astronauts Anne McClain, commander; and Nichole Ayers, pilot; along with mission specialists JAXA (Japan Aerospace Exploration Agency) astronaut Takuya Onishi, and Roscosmos cosmonaut Kirill Peskov are preparing to head back to Earth. <br /><br />The crew says farewell in this change of command ceremony aboard the International Space Station.<br /><br />Credit: NASA
