WE ARE NOT ALONE: SCIENTIFIC EVIDENCE SUGGESTS THERE ARE TWO TRILLION INTELLIGENT SPECIES IN OUR UNIVERSE
Estimated calculations of intelligent life existing on other planets could be in the trillions. Are they watching us?
Estimated calculations of intelligent life existing on other planets could be in the trillions. Are they watching us?
Was Mars habitable in the past and if so what was needed for the planet to substain liquid water and Life?