PNAS is one of the world's most-cited and comprehensive multidisciplinary scientific journals, publishing more than 3,500 research papers annually.

The Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS), is an authoritative source of high-impact, original research that broadly spans the biological, physical, and social sciences. The journal is global in scope and submission is open to all researchers worldwide.

PNAS was established in 1914 in honor of the semicentennial anniversary of the National Academy of Sciences. Since then, we have worked to publish only the highest-quality scientific research and to make that research accessible to a broad audience. In addition, PNAS publishes science news, Commentaries, Perspectives, Special Features, podcasts, and profiles of NAS members.

In 1995, PNAS began accepting Direct Submissions from researchers without an NAS affiliation. While we retain strong ties with the NAS, whose members oversee the journal’s rigorous three-tier peer review process, we now receive more than 17,000 Direct Submissions each year. Direct Submissions account for more than 75% of the research we publish.

PNAS is available by subscription, and all content is free within 6 months. Authors who choose the open access option can have their articles made available without cost to the reader immediately upon publication. More than 120 countries have free and immediate access to PNAS through our Equitable Access Initiatives.