Sputnik International
By Andrei Dergalin
June 4, 2022
The author of a new paper used the number of invasions perpetrated by countries during the last century to try to gauge the odds of an extraterrestrial civilisation invading our world.
Sending signals into space in search of alien life may not necessarily be a good idea, as there could be about four extraterrestrial civilisations that might invade us, according to a new thought experiment performed by Alberto Caballero, a PhD student at the University of Vigo, Spain.