JIM TEDDER: For many years, researchers thought our solar system, the sun with Earth and the other planets, was a very special place. But that has changed. Researchers now believe there are billions of stars like our sun with planets orbiting around them. They also think that many of these planets are able to support life as we know it.
Long before SETI, an astronomer named Frank Drake began searching the skies for radio signals. In nineteen sixty, he worked at the National Radio Astronomy Observatory in West Virginia. He is almost sure that we are not alone. Using a mathematical model he created, he estimates that there are ten thousand places in our part of the universe where life exists.
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CHRISTOPHER CRUISE: After looking at millions of stars and listening to radio noise for many years, have scientists ever found anything that suggests there is intelligent alien life? The answer is: maybe. It happened one night in nineteen seventy-seven. A large radio telescope in Ohio heard something that made the scientists say, “Wow.”
The telescope was connected to a computer and a printer. The gathered information usually showed a series of low numbers, ones, twos, and threes. That meant that all the device was hearing was low level "background” noise, similar to the sound you hear when you set your radio between stations. But suddenly, something surprising happened. For a little over one minute, the noise level rose to a level thirty times what was usually heard. For seventy-two seconds, it appeared to some that our distant space brothers and sisters had finally said, “Hello.” When Jerry Ehman, a SETI scientist saw what the printer had produced, he drew a circle on the page in red ink and wrote, “Wow.”
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2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25