"finally he was reading websites that made sense . the biggest questions asked by skeptics is , where is the evidence ? all these decades of aliens visiting earth and no clear photograph , or video ? the only photos taken of ufos are blurry or zoomed in from a great distance . with all the high definition cameras out there , why ca n't anyone take a clear picture of a _ ..." What is the word in the blank space (_)? The answer is
ufo