On August 10, 1977, astronomers detected a burst of cosmic radiation that lasted only one-thirteenth

Added: 2026-05-27

[00:00:00]On August 10th, 1977, astronomers detected a burst of cosmic radiation that lasted only 1/13 of a second, now known as the Wow signal.

[00:00:09]This mysterious pulse was so strong that it remains the strongest candidate for a transmission from an extraterrestrial civilization.

[00:00:17]The signal was picked up by a radio telescope at Ohio State University, and its origin remains unknown to this day.

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