Recently, British astronomers told the government that we might find life in space. It is only a matter of time, this year perhaps, before astronomers detect a planet even more similar in size and mass to our Earth, circling another star. And when we find that planet, we may discover a lot more than new oceans and land masses.
Astronomers have been actively looking for intelligent life in space since 1960, when Frank Drake started Project Ozma, using a radio telescope to listen for signals from two nearby sun-like stars – Drake knew that radio waves travel more easily through the cosmos than light waves. He didn’t hear anything back. Since then, our searches have become more thorough thanks to larger radio telescopes and more sophisticated computers that look for fainter signals. But we still have no signal from ET. Should we want to?