Sheldon and Amy's honeymoon runs aground in New York. Penny and Leonard discover they are uncomfortably similar to Amy's parents. Raj insults physicist Neil deGrasse Tyson and starts a Twitter war.
1 / 24
Episode12 / 12
Season9.9
Rating1K
Votes2018
YearBill Nye
Neil deGrasse Tyson
Bellman
Sunny Morrow
Tour Guide
Bike Messenger (uncredited)