The Alignment of Exodor was an event in which seventeen galaxies were in alignment. It was in a time stasis field, meaning it could only be seen once. The Eleventh Doctor planned to see the Alignment of Exodor, but instead investigated a Cybermen invasion. Despite still having some time after this adventure, the Doctor chose to clean up and repair Craig's house so Sophie wouldn't be cross with him upon her return. (DW: Closing Time)