What on Earth?

Secrets of Biosphere 2

Documentary Mar 9, 2023 41 min iTunes

Available on Investigation Discovery, Food Network, Science Channel, Discovery, TLC, Travel Channel, HGTV, Prime Video, discovery+, Hulu, Sling TV, Animal Planet, Philo, AHC GO, Destination America GO, Discovery Life GO, Cooking Channel

S12 E9: Satellite images capture a mysterious group of pyramid-shaped structures in the arid, desert landscape of Arizona. Experts investigate and uncover a highly controversial research facility designed to prepare humanity for life on another world.

Documentary Mar 9, 2023 41 min iTunes

TV-PG

Information

Released: 2023
Run Time: 41 min
Rated: TV-PG

Languages

Original Audio: English
Audio and Subtitles: English (United States) (AAC, CC)

Accessibility

: Closed captions (CC) refer to subtitles in the available language with the addition of relevant non-dialogue information.