Christmas in space? NASA astronauts Sunita "Suni" Williams and Barry "Butch" Wilmore surely didn't think they'd still be on the International Space Station for Christmas when they left Earth in June.

NASA is getting into the festive spirit, sharing some stunning images of the Christmas Tree Cluster and the Cosmic Wreath.

Christmas is here, and so are brand new images of some of the most beautiful holiday-inspired celestial views in the visible ...