I was feeling a little down because something just popped up which will keep me from going to the job interview that I was supposed to have next week. But then, Joss Whedon pointed out a cool set of videos on his Twitter account and I could not help but pass them along.
This one is my favorite, but the rest of the ones by Get a Barack are pretty cool, too.
ETA: You can stop trying to win my vote, Obama. You had me with the rest of your science policies. Still, your attempt to get Congress to renew its commitment to NASA is very much appreciated.