9 JULY 2017 #32 ARE WE ALONE?

ARE WE ALONE? WHAT IF WE’RE NOT? SETI — the Search for Extraterrestrial Intelligence —  has been going on for awhile. SETI looks for planets that could support life … maybe intelligent life … and listens for messages aliens might try to send us. METI – Messaging Extraterrestrial Intelligence —  is now getting started. METI scientists are not just listening for messages from aliens, they are devising messages to send to aliens. This means sending radio waves in regular patterns intelligent beings could recognize as deliberate attempts at contact, not just radio noise. Until recently, an  answer to a METI message sent to the far reaches of the universe was not considered possible for another 50,000 years. But this year, … Read More