From the February 2010 issue

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.
By | Published: February 22, 2010
Allen Telescope Array
The Allen Telescope Array is an example of small parabolic dishes and will cover a frequency range of 1 to 25 GHz.
SKA consortium

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.