FORMER US president Bill Clinton said"there is something you could call life" in space when quizzed about recent UFOs sightings.
Clinton joins fellow former Democrat president Barack Obama in raising the alarm about extraterrestrial life following a spate of sightings by US military personnel.
Appearing on Live with Kelly and Ryan, Clinton dropped his biggest hint yet.
Probed on whether UFOs were real, the former politician said the US government has never proved their existence but that "there are things flying around up there that we haven't fully identified yet".
"Keep in mind there are billions of galaxies in an ever-expanding universe," Clinton added.
"I mean, you can't even get your mind around the sheer number of things that are out there. No one knows, but I think the probability is that there is something you would call life somewhere else."
Weeks earlier, Obama told The Late Late Show with James Corden the US was monitoring UFO sightings.
"Well, when it comes to aliens, there are some things I can just can't tell you on air," Obama said.
"What is true, and I'm actually being serious here, is that there is footage and records of objects in the skies that we don't know exactly what they are.
"We can't explain how they move, their trajectory. They did not have an easily explainable pattern."
The comments come as what was regarded as a conspiracy theory is now being taken seriously as national security threat.
A bombshell Pentagon report - which is yet to be released to the public - is tipped to confirm the vast majority of the 120 sightings made by US Navy personnel over the past two decades were not American military or other government technology.
Those findings - due to be presented publicly to Congress later this month - eliminate the possibility that the Navy pilots may have seen some form of secret government aircraft, the New York Times reports.
Officials believe that some of the aerial phenomena could have come from a rival power such as Russia or China amid fears that Moscow may have been experimenting with hypersonic technology.
Senior officials briefed on the findings said that because the report is inconclusive, the government could not definitively rule out the alien spacecraft theories.
An unclassified version of the findings is set to be released to Congress by June 25.
The final report, however, will still , according to the Times.
Officials said that the annex will not contain any evidence of alien activity, but the fact that it must remain classified will likely fuel increased speculation.
NATIONAL SECURITY THREAT
Former Pentagon official Lue Elizondo said the military has been seeing mysterious "tic-tac" UFOs since 1950, possibly even earlier.
Elizondo said senior military personnel and scientists have spotted UFOs over US military facilities on multiple occasions.
"The US government has finally admitted that this is not some sore of secret US technology," he said. "But now, there is some wiggle room to say, 'Well maybe it is some foreign adversarial technology.'"
Elizondo poured cold water on the theory Russia or China could be behind the aerial phenomenons.
He said Russia had shared a lot of its UFO information with the US following the fall of the Berlin Wall while China, Lue said, was behind the curve on technology in comparison to the US and unlikely to have developed any such aircraft.
"We’re talking about a country that somehow for 70 years has kept this technology that was at least 1000 years ahead of us – kept it secret, was able to employ it against us all the way back to 1950," he said of the possibility.
One theory is that UFOs have been living beneath the sea.
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Gary Heseltine, the vice president of UFO-tracking group International Coalition for Extraterrestrial Research said videos showing encounters between the US Navy and UFOs along with a Pentagon investigation are game changers that pave the way to finally explain the unexplained.
"UFOs are often seen coming in and out of water so suspect that in our deepest oceans and trenches we may well have alien bases," he told The Sun Online.
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"That sounds crazy but if you think about it we only know 5 per cent of ocean, we know more about the surface of the moon or Mars than our own oceans - so that would seem to me why UFOs are seen regularly coming in and out of water."
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