The Decoupling Fluctuation
S6, E2: Sheldon intervenes when he learns that Penny is thinking about breaking up with Leonard, but he is hampered by his inability to keep a secret. Meanwhile, in space, Howard is being picked on by the other astronauts.

S6, E2: Sheldon intervenes when he learns that Penny is thinking about breaking up with Leonard, but he is hampered by his inability to keep a secret. Meanwhile, in space, Howard is being picked on by the other astronauts.