adam frank

If there was a civilization on Earth that predated humans, would we have discovered them?
Determining the existence of a civilization on Earth that predates humans is a thorny question and attracts the interest of many scientists and archaeologists.
Billions of alien civilizations have existed
Scientists calculate and almost certainly many extraterrestrial civilizations have existed in this universe.
Prove that humans are not alone in the universe by mathematics
Mathematicians who have just answered the eternal question of mankind are: Are we human beings alone in the universe?