Interstellar Quote by Arthur C. Clarke

The phenomenon of UFOs does exist, and it must be treated seriously.

— Mikhail Gorbachev

The fact that some religious fanatics might support a theory doesn't invalidate it, anymore than the concurrence of UFO abduction cults invalidates the notion…

— James P. Hogan

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

— Walter Riedel

UFO's are as real as the airplanes flying overhead.

— Paul Hellyer

It is my conclusion that UFOs do exist, are very real, and are spaceships from another or more than one solar system. They are…

— Hermann Oberth

From my studies of old and recent reports, and from direct involvement with several UFO investigations, I have become convinced that there is something…

— Bruce Maccabee

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

— Carl Sagan

At first glance, the idea that some UFOs may be vehicles from outside the Earth seems utterly preposterous, the baseless result of wishful thinking…

— Don Berliner

Many questions remain in the UFO controversy. Scientists ask how interstellar pilots could survive a trip of hundreds of years while cutting-edge physicists offer…

— Jim Marrs

It is an understatement to say that the time has arrived for a serious and open international dialogue regarding the possibility of future interplanetary…

— Steven M. Greer

In their public statements (but not necessarily in their private statements), scientists express a generally negative attitude towards the UFO problem, and it is…

— Peter A. Sturrock

Of course UFOs are real-and they are interplanetary…The cumulative evidence for the existence of UFOs is quite overwhelming and I accept the fact of…

— Hugh Dowding, 1st Baron Dowding