Christmas on Earth conjures images of crackling fireplaces, snow-dusted landscapes, and the comforting aroma of gingerbread. But for NASA's astronauts, the holiday takes on a whole new dimension, celebrated at 17,500 miles per hour amidst the awe-inspiring vastness of space. From the pioneering days of Apollo to the high-tech haven of the International Space Station, let's embark on a cosmic journey through 55 years of celestial Christmases, unwrapping the ingenuity and heartwarming traditions that have adorned the holiday in orbit.