We don't know whether or not there is other intelligent life in the universe. There is no reason there shouldn't be. We know by our own existence that the universe is conducive to life. I would say, the smart money, is on the universe being full of life. That our Earth contains the only life in the universe, makes absolutely no sense. I recognize that there is, as yet, no evidence to support this belief of mine. Nonetheless, I am confident that life exists beyond our planet.
Consider the numbers involved. We live in a universe with billions upon billions of stars, many of which are very much like our own Sun, and each may well have a clutch of planets. So, even if the probability of intelligent life emerging is infinitesimally small, the sheer number of stars in the heavens makes it likely we're not alone.
The Wow! signal was a strong narrow-band radio signal detected by Dr. Jerry R. Ehman on August 15, 1977, while working on a SETI project at the Big Ear radio telescope of The Ohio State University then located at Ohio Wesleyan University's Perkins Observatory, Delaware, Ohio. The signal bore expected hallmarks of potential non-terrestrial and non-solar system origin. It lasted for the full 72-second duration that Big Ear observed it, but has not been detected again. The signal has been the subject of significant media attention.
Amazed at how closely the signal matched the expected signature of an interstellar signal in the antenna used, Ehman circled the signal on the computer printout and wrote the comment "Wow!" on its side. This comment became the name of the signal.
The Wow! Signal
Have a look at the video above. The immensity of the universe and the density of stars is awe inspiring. And you are looking at only a small portion of the known universe. There must be life somewhere in that majestic, incredible, vastness of space.
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Edited by Great Ape, 20 February 2012 - 08:10 AM.