World Truth

There’s no such thing as a “close call” in SETI – either the radio telescope has picked up an alien signal, or it hasn’t. “Close” doesn’t exist in this one-bit experiment, any more than it doe…

An astronomer thinks he's pinpointed the source of a mysterious radio signal from space: a passing comet that nobody knew about. But his colleagues said they're still skeptical of the e…

On August 15th 1977, a radio telescope located at Ohio State University detected something strange. The telescope was scanning the stars searching for possible signals from alien civilizations as par…