A new survey is under way to search for signs of intelligent extraterrestrial life, but this one has a twist: Instead of listening for alien signals from anywhere in the sky, scientists are aiming radio telescopes at the alien planets most likely to be like our own Earth.
The new search, which began last week, is scanning 86 alien worlds for radio signals that could suggest the presence of an advanced civilization. The extrasolar planets are thought to be the most Earth-like of the 1,235 candidate planets discovered so far by NASA’s prolific Kepler space observatory.
“We’ve picked out the planets with nice temperatures — between zero and 100 degrees Celsius [32 and 212 degrees Fahrenheit] — because they are a lot more likely to harbor life,” said physicist Dan Werthimer of the University of California, Berkeley, in a statement.
This new SETI search is not part of the SETI Institute, which has long served as the Earth’s ears for any signals from intelligent aliens. Earlier this month, the Institute announced it was placing its primary listening station – a network of radio telescopes called the Allen Array — in hibernation due to funding problems.
[Continues at Space.com]