PBS Space Time

Is It Irrational to Believe in Aliens?

Documentary Feb 18, 2015 6 min PBS Video

Available on PBS Video

S1 E2: Aliens! Could humans really be alone in this expansive universe?

Documentary Feb 18, 2015 6 min PBS Video

: Closed captions (CC) refer to subtitles in the available language with the addition of relevant non-dialogue information.