The US Government most likely does have the physical proof but are not about to share it with the rest of the world. Over thousands of years people have seen the same things that are still reported today. It's basically the same story that changes very little. That is usually an indication of the truth. We will learn of UFO's only if the government wants us to know about it. Until then humans keep watching the sky with their cameras hoping to catch a glimpse of alien visitors.
People have reported sightings of UFOs in France, but there is no proof of their existence.
No, but most believers don't need proof.
It is impossible to even speculate. There is no admitted proof that UFOs do exist and no hard information on propulsion.
No. UFOs are proof that some people have seen things in the sky that they themselves cannot identify. That is what UFO means, not *alien spacecraft*. There has never been the slightest shred of evidence that *any* UFO was an alien spacecraft, so the answer to your question is no.
There is proof of snow and Bacteria on Mars, but I'm not sure about the UFO's.
Most likely, but there isn't much concrete proof either way.
Well, there are real things that appear to be flying that couldn't be identified; that's why they're called UFOs (Unidentified Flying Objects). Some are later identified. There has never yet been actual proof that UFOs come from anywhere but earth.
Yes, there are.
they are real i have proof as well so don't say they are not real cause that would be really dumb!
UFOs have been reported in virtually all of the states at one time or another.
I believe aliens might exist somewhere in the universe, but I don't believe any stories about UFOs or abductions or crop circles or anything like that. -------------------------------------------- A good answer. I don't *believe* in aliens because I have seen no proof of them, and belief without proof is faith (religion) not science.
None recorded.