A former NASA scientist has said he believes 'many governments' have covered up the existence of aliens and, let's be honest, if anyone knows about this sort of stuff, it's going to be him.

Kevin Knuth, who now works at the University of Albany as a professor of physics, says there's already plenty of evidence to back up his belief that aliens exist.

Writing for The Conversation, Knuth, who worked as a research scientist at NASA, says that people need to face the possibility that the UFO sightings we currently read about could well be from extra-terrestrial visitors.

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He wrote: "I believe we need to face the possibility that some of the strange flying objects that outperform the best aircraft in our inventory and defy explanation may indeed be visitors from afar - and there's plenty of evidence to support UFO sightings."

He reckons humanity needs to carry out more research so we can figure out how this could best benefit us. He also writes that speaking out about UFOs is often difficult and blames the media and various governments for implying the idea of alien life is 'nonsense'.





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Knuth writes: "Essentially, we are told that the topic is nonsense. UFOs are off-limits to serious scientific study and rational discussion, which unfortunately leaves the topic in the domain of fringe and pseudoscientists, many of whom litter the field with conspiracy theories and wild speculation."

According to Knuth, it's probable that some of the planets within our galaxy could host life - but says that more research is needed.

In the article, he says: "The problem is that there has been no single well-documented UFO encounter that would alone qualify as the smoking gun.

"The situation is exacerbated by the fact that many governments around the world have covered up and classified information about such encounters."

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Although he spoke out favourably about the governments, including the UK, that have declassified UFO files, saying that by sharing this previously top-secret information governments have helped make UFO claims seem more legitimate, particularly ones that show sightings made by officials.

So, the truth is indeed out there, eh? I mean, if a NASA scientist has said there's aliens trying to make contact then I reckon it's fair to say that aliens are trying to make contact.