What is the best evidence to support that alien intelligent life has visited our planet?
Is there any evidence that aliens visited our planet?
Will we ever communicate with aliens? There is show on history TV alien ancestor is it possible our gods are aliens? Does alien and 'UFO' really exist? Is there any scientific proof? Can anyone prove they have been abducted by aliens? Is it true that aliens built the earth, as well as put humans on it, as an experiment? Did they? Or not? How would the world react to the discovery of aliens? What if the asteroids that killed the dinosaurs was a UFO and we, the humans, are the aliens? How do you think the world would react to the existence of aliens if proved, as of now? Are cows aliens? What if the asteroid that killed the dinosaurs was a UFO and we are the aliens? Is NASA hiding new evidence of possible alien spaceships near the Sun? Where are aliens? Did Einstein meet aliens as shown in history TV in Ancient Aliens? Is it true? Are there any real cases of human encounter with alien? Are any of the ideas proposed on Ancient aliens credible? Do you believe in the theory of "Ancient Aliens"? If we meet aliens, then how could we communicate with them? Will there ever be an alien invasion of Earth? What if there aren't any aliens? Is the Andromeda Galaxy visible from Earth? What would we do if we found human-like aliens that are less advanced as we are with technology? What if aliens exist and their level of technology is so advanced that they can see all the creatures on the earth, but being millions of light years away from the earth they can only see dinosaurs and are afraid to contact us? Is there any reported aliens that do not look like humans? Do people believe in the theory of 'ancient aliens' being our creators? Why has NASA so far not found alien artifacts on the worlds of the solar system? Do aliens exist? And why has Area 51 of Russia and the US's NASA agencies come under doubt of having their contact with aliens? What form of religion would aliens in other planets have? Where are all the aliens? Have any of your friends and family been abducted by aliens? Why should we talk about aliens existence?