Does there any evidence that alien life "visits" Earth?
What is the best evidence to support that alien intelligent life has visited our planet?
If there lived a sentient alien species in the universe would they be at or around the same intelligence as us? Is it true we were really brought to earth by aliens? Are any of the ideas proposed on Ancient aliens credible? How would the world react to the discovery of aliens? How many species of aliens had visited our planet? Should we worry about extraterrestrial life? What are the chances that there are other intelligent life forms in this vast universe of which we are a small part of? Has ever an alien been captured by any nation on earth? What is the first alien species to visit Earth most likely to look like? Are there any real cases of human encounter with alien? Do you believe that humans are the one and the only intelligent species in the Universe? Are we human beings aliens to planet earth? And if not, then are we acting so? Which is the most intelligent alien or alien species in fiction? Have aliens not contacted Earth because they've fulfilled life's meaning, and become one with pre-universe? What is the most intelligent species on Earth? How would society respond if we discovered that there is an interstellar 'human' empire out there in the galaxy? Which is the most intelligent species on Earth? Have you ever encountered any alien? Please be true.Do not make a story. Within the next century, will humans discover life on other planets? Have you encountered an alien? What happened? Are there any current or planned attempts to try to contact intelligent extraterrestrial life? Has NASA found aliens? Is there any possibility that a species more intelligent than human exists on earth? What good will the knowledge of life on other planets bring us? Is it true that the Indian government knows about aliens and alien bases? Is NASA hiding new evidence of possible alien spaceships near the Sun? What is the ancient alien theory? Who were they? How would you lead an alien invasion of earth? Have you ever seen an alien or talked to an alien? Why has NASA so far not found alien artifacts on the worlds of the solar system?