Eugene Cernan, Apollo 17 Commander:
"I'm one of those guys who has never seen a UFO. But I've been asked, and I've said publicly I thought they were somebody else; some other civilization..." (Chriss, Nicholas, "Cernan Says Other Earths Exist," Los Angeles Times, January 6, 1973.)
GENE CERNAN 1934 - 2017 = A LIFE WELL LIVED FOR AMERICA ..... THANK YOU MY FRIEND!