It doesn’t get any more direct than this: Dr. Edgar Mitchell, former astronaut and now head of the Institute of Noetic Science, says he’s been told by credentialed military officials that extraterrestrials are real and have been visiting Earth for a long time.
Watch this recent interview here.
In another interview, he also confirms that the Roswell crash involved an extraterrestrial craft. (He grew up in the area and says the old-timers, whom he’s talked with, know what really happened.) Watch the interview here.