Wow, what a signal: the time we picked up an alien radio transmission (science video).
Here’s a science documentary on the The Wow! Signal, a strong narrowband radio signal received August 15th, 1977, by Ohio State University’s Big Ear radio telescope.
The signal came from the direction of the constellation Sagittarius and bore all the expected hallmarks of an extraterrestrial origin. It still remains the strongest candidate for an alien radio transmission ever detected.
