Looking for alien lasers, not radios

2019-03-02 01:09:01

(Image: Paul Horowitz) The first optical telescope dedicated to the hunt for alien signals has opened. For almost 50 years, since SETI (Search for Extraterrestrial Intelligence) projects began in earnest, people have concentrated on detecting radio signals, says Paul Horowitz, an astronomer at Harvard University in Massachusetts, US. But recently,