When I entered the SETI Café around noon yesterday, everyone was
listening to a new sound from the restaurant speakers.
It sure wasn’t voice or music. It was a repeated sequence of a short
fast warble, followed by a longer ragged buzz. From my shortwave
listening days, I thought I recognized a digital packet or FAX radio
transmission.
Cosmo saw me standing listening at the doorway and came over. He
gestured up at the speakers. “This is the latest thing from the
stars,” he told me. “It’s a real signal, not something produced
artificially by processing. The SETI people are pretty excited. It’s
coming from some star that they haven’t listened to before, and it
repeats. The radio telescope gets the same signal for about half an hour
every couple months. This is the latest.”
I saw Felix, the astronomy student, having lunch at a table in back. I
went over to talk to him. “What is this new stuff?”
Felix replied, “You remember Dr. Winston telling you about the
technique of Statistical Signal Enhancement? Well, they actually got it
to work to some degree. When they tried it on HD85, they got this
stuff.”
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