Bibliography

See D. Goldsmith, The Hunt for Life on Mars (1997); P. Day, ed., The Search for Extraterrestrial Life: Essays on Science and Technology (1998); S. J. Dick, Life on Other Worlds: The 20th-Century Extraterrestrial Life Debate (1998).

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2007, Columbia University Press. All rights reserved.

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