Earth's Transit Zone: The Best Place to Find Aliens?

How the heck can we find, let alone communicate with, extraterrestrial intelligences when there's billions of potentially life-friendly planets to survey?

Published On 03/11/2016
1:00 PM EST
Pale Blue Dot: Our home as seen by the Voyager 1 spacecraft on Feb. 14, 1990, as the probe traveled away from Earth at a distance of 6 billion miles. How could aliens in different star systems detect our planet? | NASA