By John Gertz Scientific American

SETI, as a modern astronomical endeavor, dating to 1959 (first paper) and 1960 (first observation). Modern UFO sightings date to the late 1940s. Though superficially similar, the two fields in practice have had virtually nothing to do with one another. SETI usually requires a graduate degree in astronomy, and its scientists tend to disdain UFOers for requiring nothing more than a camera that takes blurry photos and a butterfly net in case a little green man appears.

However, the two camps may be moving closer together.

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