well, I don't take his word on yahoo news as bible gospel. I don't have his research papers to examine it throughly. I am aware that attention seeking scientist tend to release junk science news to the public as fact. they should provide documentation to support their claim.

It isn't always the scientists. A scientist has a theory based on an observed phenomena. He mentions it in a journal, or in a forum like this one (there are a few good ones for the various sciences, but with restricted access). Someone notices it, usually a "science editor" or "advisor" who failed for whatever reason in their particular field, and passes it on to his editor who has all the scientific comprehension of a tape worm on the principle that our eager young space cadet is partially paid by the word or article. From there, it gets published.

Remember, all the news that is printed to fit.