Biosphere 2 hosted just two "sealed-in" crews, both during the 1990s.
This episode of Ungeniused is sponsored by:133: Microsoft Bob
132: Chess Boxing
131: Rocket Mail
130: Sputnik 1
129: Crime in Antarctica
128: The Quadro Tracker
127: The Crash at Crush
126: Saturn the Alligator
125: The Grumman Long Life Vehicle
124: The Halifax Explosion
123: Decimal Day
122: Dazzle Camouflage
121: The Space Shuttle Challenger Disaster
120: Sandboarding
119: The Battle of Palmdale
118: Black Friday
117: The Dead Sea
116: Government Cheese
115: The Waffle House Index
114: Comic Sans
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