2. Jerry Ehman and the Wow Signal
The strange sequence of numbers and letters might not mean much to us, simple minds without an understanding of astrophysics, but for Jerry R. Ehman, it triggered instant fascination. As we know, scientists are usually skeptical and seeing such a materialization of their emotion on paper is quite unique.
The ”Wow!” signal can be put side by side with the ”Evrika!” shout, thousands of years before. A narrowband radio signal was the one producing the”Wow!” signal. The recording was done at SETI’s Big Ear radio telescope at The Ohio State University, on August 15, 1977.
Amongst the speculated source of the signal we have to include the possibility that an advanced alien civilization leaked a sign of its existence. As radio telescope turned that attention again and again in that part of the sky, no follow up was received. In 2012, at the 35th anniversary the Arecibo Observatory send a response which was based on 10,000 Twitter messages.