Hunt For Alien Life Turns To ET-TV

A new generation of ultra-powerful radio telescopes designed to peer into the origins of the Universe could also be used to look for any radio or TV emissions by extraterrestrial civilisations, New Scientist says. TV and radio broadcasts are in the 50-400 megahertz range, which overlaps with the frequency range of between tens and hundreds of megahertz made by radio waves from hydrogen atoms forged in the early Universe.