By Mike Wall, Space.com Senior Writer, Oct 20, 2015 – The search for signs of life in a mysterious star system hypothesized to potentially harbor an “alien megastructure” is now underway.
Astronomers have begun using the Allen Telescope Array (ATA), a system of radio dishes about 300 miles (483 kilometers) northeast of San Francisco, to hunt for signals coming from the vicinity of KIC 8462852, a star that lies 1,500 light-years from Earth.
NASA’s Kepler space telescope found that KIC 8462852 dimmed oddly and dramatically several times over the past few years. The dimming events were far too substantial to be caused by a planet crossing the star’s face, researchers say, and other possible explanations, such as an enormous dust cloud, don’t add up, either. [13 Ways to Hunt Intelligent Alien Life]
The leading hypothesis at the moment involves a swarm of comets that may have been sent careening toward KIC 8462852, possibly after a gravitational jostle by a passing star. But it’s also possible, astronomers say, that the signal Kepler saw was caused by huge structures built by an alien civilization — say, a giant assortment of orbiting solar panels.
