The Higgs Boson Observation
Director: Mark Cendrowski
| Cast: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Melissa Rauch, Mayim Bialik |
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When Sheldon hires a female grad student to assist him, a jealous Amy asks Penny to help her spy on them, only to make a shocking discovery. Life in the International Space Station is wearing on Howard.
