Aboard the International Space Station, NASA astronauts Mike Fincke, Zena Cardman, and Chris Williams, along with JAXA (Japan Aerospace Exploration Agency) astronaut Kimiya Yui, wish a merry Christmas and a happy holiday season to Earth in a message recorded on Dec. 17, 2025. The four astronauts are in the middle of a long-duration mission living and working aboard the microgravity laboratory. The goal of their mission is to advance scientific knowledge and demonstrate new technologies for future human and robotic exploration missions as part of NASA’s Moon and Mars exploration approach, including lunar missions through NASA’s Artemis program.