Allen Telescope Array Targets New Planets


The Allen Telescope Array (ATA) is once again searching planetary systems for signals that would be evidence of extraterrestrial intelligence. Among its first targets are some of the exoplanet candidates recently discovered by NASA’s Kepler space telescope.

“This is a superb opportunity for SETI observations,” said Jill Tarter, the Director of the Center for SETI Research at the SETI Institute. “For the first time, we can point our telescopes at stars, and know that those stars actually host planetary systems — including at least one that begins to approximate an Earth analog in the habitable zone around its host star. That’s the type of world that might be home to a civilization capable of building radio transmitters.”

The ATA had been placed in hibernation mode last April as the result of the withdrawal of the SETI Institute’s former partner, U.C. Berkeley, due to budgetary shortfalls. Berkeley was the operator of the Hat Creek Observatory in northern California where the ATA is located. With new funding recently acquired for observatory operations, the ATA can resume SETI observations where it left off: examining the thousands of new candidate planets found by Kepler. Highest priority will be given to the handful of worlds discovered so far that are located in their star’s habitable zone: the range of orbital radii where temperatures are neither too hot nor too cold for liquid water to exist. Most astrobiologists consider that liquid water is the sine qua non for life.

Full Story: http://astronews.us/2011-12-05-1246.html

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