Ohio: Detection of anomalous narrow-band radio signal (WOW!)
A strong narrow-band radio signal was detected by a telescope in 1977. The signal displayed characteristics consistent with artificial origin and was never observed again.
Background
The WOW! Signal represents one of the most significant anomalies in the search for extraterrestrial intelligence. Detected in 1977 at a radio observatory, the signal displayed characteristics consistent with an artificial origin, though it was never detected again. The signal's intensity and narrow bandwidth suggested a non-natural source, sparking decades of investigation and speculation about its origin. Despite numerous attempts to relocate the signal or identify its source, it remains unexplained and stands as a candidate for potential alien communication. Via TheBlackVault.com (FOIA).