Season 12 · Episode 9 of 10
Aired Mar 9, 2023
Secrets of Biosphere 2
Thu, Mar 9, 2023
0 of 10 watched this season
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.
Notes & ratings
0 ratings
0 notes
0
25
50
75
100
Airs
Thu, Mar 9, 2023
Show
What on Earth?
131 episodes
Episode
S12 · E9
in What on Earth?