Laser tech could be fashioned into Earth's 'porch light' to attract alien astronomers
Monday, November 5, 2018 - 14:30
in Astronomy & Space
If extraterrestrial intelligence exists somewhere in our galaxy, a new study proposes that laser technology on Earth could, in principle, be fashioned into something of a planetary porch light -- a beacon strong enough to attract attention from as far as 20,000 light years away.