The more outlandish the claim, the more evidence must be provided to support it. "I need an awful lot of it and it would need to be super credible," he says. But there are compelling UFO photos back in the 50s that still have not been debunked. The possibility that this is alien life is like 10th on the list of probabilities. Is it possible? Sure. Is it probable? I think it bested is extraordinarily highly unlikely.