No evidence that UFOs have extraterrestrial origins, NASA finds

A panel of experts convened by the world's premier space agency called for more data and a serious inquiry into the origins of 'unidentified anomalous phenomena.'

Whistleblower tells Congress the U.S. is concealing ‘multi-decade’ program that captures UFOs

The Pentagon counters that investigators have not found 'any verifiable information to substantiate claims that any programs regarding the possession or reverse-engineering of extraterrestrial materials have existed in the past or exist currently.'

U.S. defends decision to shoot down 3 unidentified objects

The objects were traveling at such a low altitude as to pose a risk to civilian air traffic, the White House said.

Pentagon has received ‘several hundreds’ of new UFO reports

Beyond unidentifiable objects, there’s a lot of new technology that could be mistaken for a UFO.

How to calculate the odds that an alien spaceship has been spotted

One in a million or 1 in 10? Mathematics can help us work out the odds of whether recent sightings of UFOs are really alien spaceships.

Do aliens exist? We asked 5 experts

Even if aliens exist, are intelligent like humans and interested in making contact with us, what are the chances they'll be close enough for us to hear them screaming their presence into the cosmos?

No ET, no answers: Intel report is inconclusive about UFOs

A long-awaited U.S. government report on UFOs makes at least one thing clear: The truth is still out there

Former Navy pilot describes encounter with UFO studied by secret Pentagon program

UFO lovers, ghost hunters, psychics at Fort Knox State Historic Site

‘Experiencers’ share abduction stories