I didnt feel like burying throught 47 long pages that might take me no where on this question.

COPYRIGHTs. I read the thing over and over again, yet i do little images that still get bumped. So am i allowed to go to deviantART and take an image without their permission (as long as it doesnt say "must have permission to use this image")?

I see ppl posting pics of NASA stuff is ok but searching on google for a random pic is not always good? Im lost, what is "legal"...point me to a thread explaining in great detail for a little child like me? ...or just reply with an answer...