We finally got around to it: an episode about procrastination. Why do we do it? Is it really bad? And is there such as a thing as productive procrastination? Jorge talks to three psychologists about the science of putting things off.

Why Are We Going Back to the Moon?
33:37

Introducing: Mostly Human with Laurie Segall
02:16

Should We Mine the Asteroid Belt? (feat. Phil Plait)
34:30