There Could Be 42,777 Intelligent Alien Civilizations In Our Galaxy Say Scientists | Online Marketing Tools | Scoop.it
From onlinemarketingscoops.com - May 31, 2022 7:53 AM
How many extraterrestrial intelligent civilizations are out there and when will one of them send us a message? The answers, according to a paper published in The Astrophysical Journal are 42,777 an…