Scientists Propose Flashing Mirrors on Moon to Catch ET's Eye

Far more serious than beaming a salted snack advert into space, scientists at Pennsylvania State University in State College suggest that if we really want to catch the attention of aliens, then we should cover half the moon in mirrors, and send coded flashes of light into space. Always assuming ET's not too bored by… » 4/30/08 11:30am 4/30/08 11:30am