Astronaut Quote by Gordon Cooper

At no time, when the astronauts were in space were they alone, there was a constant surveillance by UFOs.

— Scott Carpenter

I think a lot of people in Washington are extremely suspicious of NASA.

— Laurie Anderson

I believe that these extra-terrestrial vehicles and their crews are visiting this planet from other planets. Most astronauts were reluctant to discuss UFOs.

— Gordon Cooper

I'm not at liberty to discuss the governments knowledge of extraterrestrial UFO's at this time. I am still personally being briefed on the subject!

— Richard M. Nixon

I am convinced that UFOs exist because I've seen one...

— Jimmy Carter

The more scientists I talk to, the less I believe in UFOs.

— James Doohan

For years I've been stressing with regard to UFOs that extraordinary claims require extraordinary evidence.

— Carl Sagan

Astronauts: space activists.

— Frank Borman

I happen to be privileged enough to be in on the fact that we have been visited on this planet, and the UFO phenomenon…

— Edgar Mitchell

I think some highly secret government UFO investigations are going on that we don't know about--and probably never will unless the Air Force discloses…

— Barry Goldwater

After investigating the UFO phenomenon all over the world, after studying thousands of pages of released government documents, and interviewing eyewitnesses and insiders, including…

— Michael Hesemann

I am completely convinced that UFOs have an out-of-world basis.

— Walter Riedel