Factually! with Adam Conover

Factually! Presents: If/Then

Infinite curiosity? Check. Obsessed with outer space, Nat Geo and mysteries inside the brain? Check. Gillian Jacobs and Diona Reasonover are beyond ready for this gig. On their new show “If/Then,” they talk with really smart people about stuff that makes you look out the window with wonder. In this clip, Gillian interviews NASA engineer Tracy Drain. Find…