Did yesterday actually happen?! Got to work on Big Bang Theory again AND hang with Kip Thorne (Nobel physicist 2017), Frances H. Arnold (Nobel chemist 2018), George Smoot (Nobel physicist 2006) & the incredible BBT team. 😍🤓 pic.twitter.com/N00UwtPE4I

— Kal Penn (@kalpenn) February 27, 2019