Does extra terrestrial inteligent life visit earth?
When did extra terrestrial life discover life on earth, and when did they start communicating, visiting and do some stay?
Have aliens not contacted Earth because they've fulfilled life's meaning, and become one with pre-universe? How many human beings have lived on this Earth since the beginning of the time? Why did life originate on Earth only once? How and why? How do scientists explain the origin of life on earth? What do we know about life on other planets? Has life been discovered on the moon? Did humans come from another planet? Why does human life exist on earth? Were humans around during the existence of dinosaur? How many people lived on earth? Why haven't humans gone beyond low-Earth orbit for over 40 years? How much of the earth has not been physically discovered by humans? Some question whether life exists on other planets. what do you think about it? Were humans around when dinosaurs were alive? Why or why not? With the new discovery of a habitable planet, were the Dogon right about alien life on Proxima B? Do aliens know about earth and us humans? Who was on earth first humans or plants? What if there was no life on Earth? What was the first living organism on Earth? Where did it come from? Where do we live on earth? Were humans present on earth during the ice age? What if the human race is the first intelligent life to emerge in the universe? Could that be why we haven't made contact with alien life? What are some of the real life Alien Encounters (with proof)? How many humans have been born on planet earth since the beginning of time? Why haven't we made contact to an extraterrestrial civilization yet? Hypothetical scenarios: What would happen if humans disappeared from Earth? From where did humans come? How does earth science affect your life? Counting the dead and the alive, how many people have lived on earth? Why is life possible on earth only?