Roswell UFO sightings can be explained by classified programme, Pentagon reveals in new report
Government investigations have found no evidence of alien technology, the Pentagon has said in a newly-released report.
The Pentagon's All-domain Anomaly Resolution Office (AARO), set up in 2022 to investigate and record reports of unknown objects, examined government investigations from as far back as 1945 but found there was no evidence of the US having alien bodies or technology.
In its report, the AARO said many "sightings" of UFOs were from people who unknowingly saw the testing or use of classified technology.
Claims of an alien spacecraft crashing near the New Mexico town of Roswell in 1947, for example, were consistent with Project Mogul - a classified programme using microphones flown on high-altitude balloons in a bid to detect Soviet nuclear bomb tests.
The AARO said: "All investigative efforts, at all levels of classification, concluded that most sightings were ordinary objects and phenomena and the result of misidentification."
Most UFO reports remain unsolved, the AARO said, but with more data, most of them could be "identified and resolved as ordinary objects or phenomena".
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The AARO has also revealed plans for portable UFO detection kits to collect more data on "sightings".
Acting director Timothy Phillips said the new kits, currently being tested in Texas, would have an array of sensors that fit inside a protective case.
"If we have a national security site and there are objects being reported that [are] within restricted airspace or within a maritime range or within the proximity of one of our spaceships, we need to understand what that is," he told CNN.
"And so that's why we're developing sensor capability that we can deploy in reaction to reports."
The system is called Gremlin and could be deployed to a site with many reports of UAP - unidentified anomalous phenomena, the Pentagon's term for UFOs.