Have aliens visited Earth? Are UFOs real?
No, there is no evidence for visits of intelligent aliens to Earth, either now or in the past. The are many claims concerning UFOs and aliens, but no evidence to support these claims. The photos that are posted on the Internet are mostly fakes, and no one has ever produced an artifact or any other tangible scientific evidence of UFOs or aliens. One of strongest cases against the reality of these claims is that the group of people who spend the most time observing the sky are amateur astronomers, and they don’t report UFO sightings. If there were any evidence of aliens, astrobiologists would be among to first to hail such a discovery and analyze the data. However, there is no evidence that withstands scientific investigation. If you are still interested, you can use the search engine to find posted answers to specific questions about aliens and UFOs.
