This isn't the first time such claims have been made in regards to Dwight D. Eisenhower and aliens.
The 34th President of the United States met the extra terrestrials at a remote air base in New Mexico in 1954, according to lecturer and author Timothy Good.
Eisenhower and other FBI officials are said to have organised the showdown with the space creatures by sending out 'telepathic messages'.
The two parties finally met up on three separate occasions at the Holloman Air Force base and there were 'many witnesses', it is claimed.
Conspiracy theorists have circulated increased rumours in recent months that the meeting between the Commander-in-Chief and people from another planet took place.
But the claims from Mr Good, a former U.S. Congress and Pentagon consultant, are the first to be made publicly by a prominent academic.
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