In 1977, a radio telescope in Ohio picked up a powerful, narrowband signal from deep space. It was so perfectly artificial that astronomer Jerry Ehman circled it on the printout and wrote "Wow!" It has never been detected again. Was it our first contact with an extraterrestrial intelligence?

We break down the science of the signal, its possible origins, and the frantic searches to find a repeat. This episode captures the thrilling moment when humanity may have heard a cosmic hello, and the profound silence that followed.

Hosted by Ibnul Jaif Farabi. Produced by Light Knot Studios (lightknotstudios.com).