'The extraterrestrials would probably be far in advance of us,' Professor Hawking said in 2004. 'The history of advanced races meeting more primitive people on this planet is not very happy, and they were the same species.'
"This is clearly a crop circle, not a UAP [unidentified flying object]," wrote user Dr. Diclosure. "Mislabeling known terrestrial phenomena erodes public trust and undermines legitimate disclosure efforts."