Strangest fact
A man who walked on the Moon said on the radio that he knew Earth had been visited, which sounds like insider testimony. But by his own account he was not an eyewitness to anything; he was repeating what other people had told him.
Edgar Mitchell was lunar module pilot on Apollo 14, which landed on the Moon in February 1971, making him the sixth person to walk on its surface. He died on February 4, 2016, at age 85.
On the way home from the Moon, Mitchell privately ran extrasensory perception (ESP) experiments, without telling his crewmates; they became public after splashdown. In a NASA oral history he recalled that commander Alan Shepard laughed and asked, Ed, what's this all about?
In 1973 Mitchell founded the Institute of Noetic Sciences to research consciousness and related phenomena.
In July 2008, on the UK station Kerrang! Radio, Mitchell said: I happen to have been privileged enough to be in on the fact that we've been visited on this planet,
and that the Roswell crash was real.
NASA responded that it is not involved in any sort of cover up about alien life on this planet or anywhere in the universe.
Mitchell was clear about where his belief came from. NBC News reported in 2008 that he acknowledged his evidence was essentially hearsay,
based not on anything he saw as an astronaut but on conversations with people connected to the 1947 Roswell events and other cases. Space.com's obituary notes that he spoke about his belief in UFOs though noted he had never seen one personally.