NASA Admits Aliens May Have Already Visited Earth

NASA admits "tiny super-intelligent" aliens may have already visited Earth and says some UFO sightings "cannot be explained or denied." Is this admission part of the slow motion, limited hangout UFO disclosure which seems to be going on?

A NASA scientist admits that it's entirely possible aliens have already visited Earth – and we simply never noticed.

The space expert also noted that not all UFO sightings can be "explained or denied", and said scientists should be more open-minded about the possibility of alien visitors. Read more