The US Pentagon has admitted to keeping hold of and testing wreckage from UFO crashes in a Freedom of Information response.
The Sun spoke to researcher Anthony Bragalia who wrote a letter to the Defence Intelligence Agency (DIA) three years ago requesting details of UFO material and tests that may have been carried out.
In his Freedom of Information request, he explained: "This could include physical debris recovered by personnel of the Department of Defense as residue, flotsam, shot-off material or crashed material from UAPS [unidentified aerial phenomenon] or unidentified flying objects."
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In response, the DIA released 154 pages of results including information of a 'memory' metal called Nitinol which remembers its original shape when folded.
Off the back of the response, Bragalia said what he'd received was a 'stunning admission' and one that possesses 'extraordinary capabilities'.
Speaking to The Sun, he said: "The Pentagon has admitted to holding and testing anomalous debris from UFOs. They have been able to learn some things about the materials of construction which hold tremendous promise as futuristic materials which will change our lives forever."
Mr Bragalia went on to add: "Material evidence such as UFO debris has been a focus of my research. My Freedom of Information Act (FOIA) request was very specific, seeking the test results of UFO/UAP debris, not material already known to science."
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The DIA did hold back on certain details including whether any materials could be of alien origin. They stated in the letter: "I have determined that some portions of five documents must be withheld in part from disclosure..."
But not stopping there, Bragalia said: "They are omitting information on the chemical and elemental composition of the material as well as its origin.
"They have omitted the names of the involved scientists as well, but I have since learned some of their names and will be contacting them."
Last month, the CIA made public all their documentation and records on UFOs ahead of the government's official report coming in less than six months.
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The records containing CIA files on Unidentified Aerial Phenomena (UAP) can be downloaded as a PDF file from Black Vault, a privately-owned database of declassified records, with some reports dating all the way back to the 1980s.
Among the reports include bizarre stories including 'mysterious explosions' and 'alleged contact with extraterrestrials.'