The Higgs Boson Observation

The Higgs Boson Observation is the third episode of the sixth season of the CBS sitcom, The Big Bang Theory. The airdate of this episode has yet to be announced.

Plot
Sheldon hires a grad student to read through the works he did during his preschool days, to find out if he has made a scientific breakthrough regarding the Higgs Boson particle, since he thinks he is too important to do the task himself. He eventually hires an attractive Physics grad student named Alex Jensen. When Alex answers Amy's video call to Sheldon, Amy gets shocked to learn that Alex is a girl, and gets Penny to follow her to the Caltech cafetaria to spy on her. At the cafetaria, it turns out that Alex is flirting with Leonard, much to Amy's relief and Penny's surprise. Meanwhile, Howard tells Bernadette that due to the delay of the capsule that is supposed to pick up the astronauts, he will be in space for an additional 7 - 10 days, which he despises, and he seems to be having bad anxiety attacks.

Reference

 * Taping report courtesy of Kyzzx.