12 Season
131 Episode
What on Earth? - Season 12 Episode 9 Secrets of Biosphere 2 (2023)
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.
- Country : United States of America
- Genre : Documentary
- Studio : Science
- Director :
- Cast : Steven Kearney, Andrew Gough