Listening for a signal
The SETI Institute and the University of California at Berkeley are using radio dishes to search for life elsewhere in our galaxy.
February 22, 2010
A project searching for signs of advanced civilizations is the Allen Telescope Array (ATA), some 350 proposed 20-feet-diameter (6 meters) radio dishes in northern California.
The Allen Telescope Array is an example of small parabolic dishes and will cover a frequency range of 1 to 25 GHz.
Photo by SKA consortium
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