AAAS Science magazine is supposed to be the USA's leading science journal, and it just did a
study claiming to show that its rival had lower standards. But it turned out that
Science mag itself was the one to publish the crappy study.
The journal also got a lot of publicity for a study claiming that reading certain literature improves empathy. That study is savagely criticized here and here.
It even claims in its masthead to be "The World's Leading Journal of Original Scientific Research, Global News, and Commentary." It was started by Thomas Edison.
Another story claims that Ashkenazi Jews are maternally descended from Italians and other Europeans, not Israelites. There is more explanation at NY Times and West Hunter.