The National Academy of Sciences (NAS) is a United States nonprofit, non-governmental organization. NAS is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Engineering (NAE) and the National Academy of Medicine (NAM). As a national academy, new members of the organization are elected annually by current members, based on their distinguished and continuing achievements in original research. Election to the National Academy is one of the highest honors in the scientific field. Members of the National Academy of Sciences serve pro bono as "advisers to the nation" on science, engineering, and medicine. The group holds a congressional charter under TitleĀ 36 of the United States Code. More information...

According to PR-model, is ranked 3,325th in multilingual Wikipedia, in particular this website is ranked 2,396th in English Wikipedia.

The website is placed before and after in the BestRef global ranking of the most important sources of Wikipedia.

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