OK, we're taking a quick break from the goofy tech and science videos to bring you this video from NASA, discussing its Fermi telescope and its ability to discover dark matter particles in the galaxy. Put on your brain hats for this one:
OK, time to go back to looking for funny cat videos.
Keith Shaw rounds up the best in geek video in his ITworld.tv blog. Follow Keith on Twitter at @shawkeith. For the latest IT news, analysis and how-tos, follow ITworld on Twitter, Facebook, and Google+.