Bwahahah. Space bit with a bunch of different physicists and mathemeticians giving their takes on how reindeer fly, from "they fly out of sheer cussedness - they've been told to fly, so they fly, and they're not about to let a little thing like the laws of physics get in their way", because reindeer are stubborn and not especially personable, to LeVar Burton saying "I'm not an engineer, but I do play one on TV... I can't explain the mechanics of how reindeers fly, but they do, and it's awesome."
Hee hee, Christmas geekiness. ;)
Also, yesterday, in the grocery store, I saw Chai Nog. Chai Nog?