Host Michelle Thaller talks with astronomer and author Phil Plait of Slate’s Bad Astronomy blog about this conundrum: why are humans so quick to explain the unknowns of the cosmos as aliens? And why is this healthy imagination important in science?
This is the first episode of Orbital Path, a new monthly series from PRX. Orbital Path is supported by the Alfred P. Sloan Foundation. Don't miss PRX's other science podcasts: Transistor and Outside Magazine.