Biosphere 2 hosted just two "sealed-in" crews, both during the 1990s.
This episode of Ungeniused is sponsored by:113: The Cannonball Run Challenge
112: The Water Speed Record
111: Rock Paper Scissors
110: Geomagnetic Storms
109: Viral Internet Challenges
108: Some Cool Winter Olympic Games
107: The Olympic Flame & Torch Relay
106: Project A119
105: What REALLY Happened to the Titanic?
104: The Norwegian Butter Crisis
103: Even More Unusual Sports
102: Pink Lakes
101: $2 Bills
100: Beanie Babies
99: Air Guitar
98: NACA
97: Body Farms
96: Expiration Dates
95: Nominative Determinism
94: Two Talented Squirrels
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