UC Berkeley scientists focus on 100 radio signals in search of extraterrestrial life

WHAT DOES IT TAKE to detect a radio signal sent by extraterrestrial life to Earth? Two decades of work involving radio telescopes stationed on opposite sides of the world, a supercomputer in Germany, and two million volunteer computers worldwide. Maybe. 

A team of UC Berkeley scientists has painstakingly analyzed billions of radio signals received over fifteen years and have zeroed in on 100 that are most likely to be sent by extraterrestrial intelligence.