Stingy aliens may call us on cheap rates only - space - 21 July 2010 - New Scientist - 0 views
-
thinkahol * on 07 Aug 10A new study suggests that cost-effective galactic radio transmissions would be at higher frequencies than SETI projects traditionally monitor, and ET's attempts to make contact would be only few and far between. "If ET was building cost-effective beacons, would our searches have detected them? The answer turns out to be no," says James Benford, president of the company Microwave Sciences in Lafayette, California.