Futility Closet

In August 1977, Ohio astronomer Jerry Ehman discovered a radio signal so exciting that he wrote "Wow!" in the margin of its computer printout. Arriving from the direction of the constellation Sagittarius, the signal bore all the characteristics of an alien transmission. But despite decades of eager listening, astronomers have never heard it repeated. In this episode of the Futility Closet podcast we'll review the story of the "Wow! signal," which remains an intriguing, unexplained anomaly in the search for extraterrestrial intelligence. We'll also share some more nuggets from Greg's database of oddities and puzzle over why a man chooses to drive a long distance at only 15 mph. Sources for our segment on the Wow! signal: Robert H. Gray, The Elusive Wow, 2012. Giuseppe Cocconi and Philip Morrison, "Searching for Interstellar Communication," Nature, Sept. 19, 1959. Frank White, The SETI Factor, 1990. David W. Swift, SETI Pioneers, 1990. David Darling, The Extraterrestrial Encyclopedia, 2000. Michael Brooks, 13