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Nature 396, 608 (17 December 1998) | doi:10.1038/25195

Search hopes to detect laser signals from extraterrestrial life

Steve Nadis

Researchers at Harvard University and the University of California at Berkeley have begun combing the heavens for flashes of laser light emitted by alien civilizations. In October, the Harvard group, led by physicist Paul Horowitz, mounted a camera on a 61-inch optical telescope at the Oak Ridge Observatory in Harvard.