NORAD has concluded from their observations of Santa that he must have some faster-than-light travel mechanism and space-time warping capabilities. However, the Santa Goes to Space event at the Strategic Air Command and Aerospace Museum seems to indicate that Santa has visited a galaxy far, far away.
Even with the imaginable means of FTL travel and space-time warping, it is hard to conceive of a way Santa could have visited another galaxy and returned in any reasonable amount of time.
How did Santa accomplish this feat?
Bonus: Why would Santa want to visit other galaxies?