Astronomers have moved swiftly to quell speculation they may have received a deep-space radio signal from ET. It was reported on the internet that the signal had been found using the Seti@home screensaver that uses computer downtime to analyse sky data from telescopes. But researchers connected with the project told BBC News Online on Thursday that no contact with extraterrestrials had been made. "It's all hype and noise," said its chief scientist, Dr Dan Wertheimer. "We have nothing that is unusual. It's all out of proportion." And Dr Paul Horowitz, of Harvard University, who specialises in hunting for possible alien contacts added: "It's not much of anything at all. We're not investigating it further." For six years, the Seti@home project has used a downloadable screensaver on millions of computers around the world to sift through data for anything unusual. The data has been collected by radio telescopes scanning the sky for any unusual signals from space.