Satellite images capture a mysterious group of pyramid-shaped structures in Arizona's arid, desert landscape. Experts investigate Biosphere 2, a highly controversial research facility designed to prepare humanity for life on another world.
What on Earth? - 12x09 Secrets of Biosphere 2
- Poor
- Nothing special
- Worth watching
- Pretty cool
- Awesome
- Aired Mar 09, 2023
- Episode 12x09
- Show special No
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- goldalchemist is following What on Earth?. Mar 01, 2018
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goldalchemist last seen Aug 10, 2022
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