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SETI Detected an Intelligent, Extraterrestrial Signal from a Nearby Constellation (Video)
Scientists say that if the signal came from extraterrestrials, they are likely to be an extremely advanced civilization, as the signal would have required a 2.2-gigawatt transmitter, vastly more powerful than any on Earth.
The signal bore the expected hallmarks of non-terrestrial and non-Solar System origin.
One summer night in 1977, Jerry Ehman, a volunteer for SETI, or the Search for Extraterrestrial Intelligence, may have become the first man ever to receive an intentional message from an alien world. Ehman was scanning radio waves from deep space, hoping to randomly come across a signal that bore the hallmarks of one that might be sent by intelligent aliens, when he saw his measurements spike.
Watch the video (4:35 minutes HD) here: https://www.youtube.com/watch?v=BcjoRVctkcQ
The signal lasted for 72 seconds, the longest period of time it could possibly be measured by the array that Ehman was using. It was loud and appeared to have been transmitted from a place no human has gone before: in the constellation Sagittarius near a star called Tau Sagittarii, 122 light-years away.
All attempts to locate the signal again have failed, leading to much controversy and mystery about its origins and its meaning.
Read more: http://en.wikipedia.org/wiki/Wow!_signal
http://en.wikipedia.org/wiki/Tau_Sagittarii
http://www.bigear.org/wowmenu.htm
