Egyesült Államok,
2009, 17x50 perc
Forgatókönyvíró:
Stuart ChaitZeneszerző:
David HleboSzereplők:
Steve Jacobs, Russell Schweickart, Peter H. Schultz, Michelle Thaller, Sean Carroll, Phil PlaitGaléria (9)
Photo © National Geographic Channel
Photo © National Geographic Channel
Photo © National Geographic Channel
Photo © National Geographic Channel
Photo © National Geographic Channel
Photo © National Geographic Channel
Photo © National Geographic Channel
Photo © National Geographic Channel
Photo © National Geographic Channel