BIOSPHERE 2 - UNITED STATES
A private organization built an experiment a few miles north of Tuscon (Arizona).
The structure is an "earth-like" system to sustain
life and constructs in a size small enough to be put into space.
In 1990, Universal Wallboard completed the unique internal habitat structure.
This is a three story metal framed free-standing structure which is completely independent of the outer structural skin.
Biosphere2 begins with eight persons . Today it is a place for scientists,
students and engineers to learn how the biological diversity of the planet's ecosystems sustain life.
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