Secret NASA audio captures 'alien base' comment during moon mission debrief

A one-page memo in the third tranche of UFO files released on Friday revealed a 1958 phone conversation between the CIA and a scientist about an alleged 'space message' which had been destroyed after its reception on Earth.

The scientist, Dr Leon Davidson, was a chemical engineer and UFO researcher who worked on the Manhattan Project, the mission to create the world's first atomic bomb in World War II.

The memo stated that Davidson was told by the CIA that the agency 'cannot resolve his problem concerning the space message and its transmitter because records on the matter have been destroyed by the evaluating agency.'

The memo then acknowledged that two agents from the CIA had been in contact with Davidson before the scientist reached out to the agency regarding the mysterious transmission.

The memo admitted that agents 'Walker and Skakich' attempted to conceal their identity from Davidson while speaking to him about the message from space.

'Referenced telephone conversation disclosed that there is nothing in the record to show that Davidson knew he was dealing with the Agency in his contacts with Walker and Skakich, that in fact, an effort had been made to to conceal their CIA identity from him.'

'But the answer was hardly fair to Davidson, and one not likely to be fully accepted by him,' the memo continued, noting that Davidson was given no answers on how or why the transmission was destroyed.

It is unclear when and where Davidson allegedly received his message from space.