Hello I Love Cameos on Big Bang Theory!

Neil Degrasse Tyson, author of my favorite popular science book Death By Black Hole and Other Cosmic Quandries, real life Galactus*, and astrophysicist extraordinaire , has a cameo on The Big Bang Theory!

All the clips in YouTube didn't allow embedding, so let's settle for a picture:

*Because he's a Destroyer of Worlds!!... You know.. because of Pluto??.. okay fine, the analogy isn't as clever as I thought it was...