Sunday, May 28, 2006

HOW MAN MIGHT LIVE ON THE MOON ...

A walk through Biosphere 2, near Oracle, Arizona, is a fun way to see what humans might require to survive off-planet. Built in the late 1980s, Biosphere 2 was designed as an airtight replica of Earth's environment — complete with a rain forest, desert, agricultural areas and human habitat — and used in an experiment to see how people might live on the moon or Mars. The experiment ended after three years, and no one has lived inside the sealed domes since 1994. The structure, however, has become a working research facility, and visitors can tour the three-acre ecological laboratory. You can see exhibits examining "Climate Change and Life on Earth," as well as walk through areas where the Biospherians lived and worked. The tour price is $19.95 for adults; $12.95 for ages 6-12; children 5 and younger are admitted free.

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