In the hunt for alien worlds, the holy grail would be intelligent alien life: the long-awaited signal that humanity has hoped for since we started dreaming about the stars, the one that tells us we’re not alone in this Universe. For more than half a century, the Search for Extra-Terrestrial Intelligence (SETI) has focused on looking for potential intelligent signals from other star systems, ranging from patterns in radio pulses to optical, X-ray or transiting signatures.

from Forbes – Tech http://ift.tt/1NgbOGh
via IFTTT