What on Earth?

12 Season
131 Episode

What on Earth? - Season 12 Episode 9 Secrets of Biosphere 2 ()

Satellite images capture a mysterious group of pyramid-shaped structures in the arid, desert landscape of Arizona; experts investigate a highly controversial research facility designed to prepare humanity for life on another world.


(16 votes, average: 6.50/ 10)

44 minutes 2024 HD

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