The Space Signal That Was Never Explained

A radio telescope in Ohio recorded something it was not expected to find on the evening of August 15, 1977. A narrow radio signal, thirty times stronger than the cosmic background, flowed out of the constellation Sagittarius for seventy-two seconds on the precise frequency that SETI had determined to be the most likely channel for an alien broadcast. Days later, astronomer Jerry Ehman viewed the printout and scrawled one phrase in the margin and circled the data in red ink. Wow. The Wow Signal is still unexplained nearly fifty years later. It has never happened again. All of the telescopes that have ever been aimed at that area of the sky, including Arecibo, the VLA, the Allen Telescope Array, and Breakthrough Listen, have heard nothing but quiet. The Wow transmission is the strongest possibility for an extraterrestrial radio transmission in human history, and this documentary investigates what it was, where it originated, and why all other explanations have failed. #WowSignalSETIAlienSignalBigEarSagittariusAstronomyDeepSpaceExtraterrestrialLifeCosmicMysteryBreakthroughListenScienceDocumentaryMysteryDocumentary