Has E.T. Made A Call? – News Story – KTVU San Francisco:
Across the globe, researchers searching for signs of life in space were abuzz this week with word that a mystery signal has been picked up by a giant radio-telescope in Puerto Rico.
Now the dilemma is — how do you answer it?
I say you answer it with a simple series… 11 1111 11111111, etc. simple messages are easy to detect.