When it comes to science and pop culture, these four are thick as thieves.
Whether it's playing tabletop role-playing games, waiting in line for the latest Star Wars movie, or dressing up at Comic-Con, these four scientists are nigh inseparable.
STREAM: Full Episodes Of The Big Bang Theory On CBS All Access
As the latest season of The Big Bang Theory continues, let's take a look back at some of the guys' most harrowing (and hilarious) adventures in geekdom.
Watch all-new episodes of The Big Bang Theory on Thursdays at 8/7c on CBS and CBS All Access.