22 Established Science "Facts" That Were Recently Refuted

Not to get all “climate change denial” on you, but “trusting the science” is a delicate proposition. The fact of the matter is that science is not always our friend. Science has perpetrated atrocities, and atrocities have been perpetrated in the name of science. Of course, that's not science’s fault. We should believe in facts even if the process by which those facts were ascertained has been abused more than a communal Fleshlight.

Except sometimes, those “facts” turn out not to be true. Science is an imperfect, well, science, and as technology and technique improves, we often find out that what was previously believed is totally wrong. The four humors, anyone? That's why one Reddit user asked r/AskReddit, “What long-held (scientific) assertions were refuted only within the last 10 years?”