The scientific project known as SETI — the Search for Extraterrestrial Intelligence — began in earnest 50 years ago, when an astronomer named Frank Drake pointed a radio telescope toward a few nearby stars and began to sift through the aural static. A half-century later SETI has matured and remains a bustling enterprise, even though it no longer receives government financing and even though E. T., if he’s out there, does not appear to have Earth on his speed dial.
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