PHILIPPE PLAILLY / SCIENCE PHOTO LIBRARY PHILIPPE PLAILLY / SCIENCE PHOTO LIBRARY
Opening of Biosphere 2. A marine biologist starts to study the coral in the ocean biome of Biosphere 2 on the day after it was opened. The 3.1 acre air- and water-tight building was home to eight occupants for two years, and was designed to allow study of the possibilities for human survival in a totally self-sufficient ecosystem. The costs of this controversial, $150 million project were met from private funds. The Biosphere 2 project building is at Oracle, Arizona.
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