United States: Arizona: Oracle: Biosphere 2

Tio D. working to end Huntington disease
30 places

A question about this place:
Why is it called Biosphere 2?

Answers:

cranberrygoddess
Canberra

I remember hearing the answer, but I don’t remember for sure what it is. I think either it is because they did a biosphere 1 which kinda failed, or because biosphere 1 is earth, and biosphere 2 is their experiment.

cranberrygoddess has gotten 2 cheers on this answer.

Tio D. working to end Huntington disease
30 places

You are correct: Biosphere 1 is the earth.