Are there any mathematical proofs to the existence of aliens?
What is the best evidence for the existence of aliens?
What evidence exists that aliens have already made contact with humans? Although there exists a huge propaganda about aliens existence, is there someone who can really provide an undoubtable proof? Do aliens really know about our existence? Does alien and 'UFO' really exist? Is there any scientific proof? Are any of the ideas proposed on Ancient aliens credible? Do you believe in the theory of "Ancient Aliens"? Why should we talk about aliens existence? How do you think the world would react to the existence of aliens if proved, as of now? If there is prove of aliens existence with governments around the world, why would they hide it? What is the reason behind not revealing the truth? Why do people believe in the ancient aliens theory? How historically accurate is the evidence shown in "Ancient Aliens" from History Channel? Has NASA ever discovered strong evidence with regard to an alien invasion? Is there evidence that aliens are actually fallen demons? Were aliens ever mentioned in the Bible? Are we really aliens on earth? Question That Contains Assumptions: Why would the U.S. government want to hide the fact that aliens exist? How would the world react to the discovery of aliens? Why shouldn't we believe in aliens? Do aliens know about earth and us humans? Are we aliens on earth? Is there any credible source open to public which testifies to the ancient alien theory? Is it true that aliens built the earth, as well as put humans on it, as an experiment? Did they? Or not? Are Paul Hellyer's claims about aliens true or not? What do you think of the series Ancient Aliens? If aliens do exist, will the government try to hide it? Why? Have aliens been to the earth? Assuming Aliens do exist and humans have been in contact, what value is this to us today? Did Einstein meet aliens as shown in history TV in Ancient Aliens? Is it true? What is your review of Ancient Aliens (TV series)? Are aliens already living on Earth and influencing or controlling human affairs?