PNAS is one of the world's most-cited and comprehensive multidisciplinary scientific journals, publishing more than 3,200 research papers annually.
The Proceedings of the National Academy of Sciences (PNAS), the official 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, Colloquium Papers, 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 3-tier peer review process, we now receive more than 16,000 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 after 6 months. Authors who choose the open access option can have their articles made available without cost to the reader immediately upon publication. Developing countries have free access to PNAS.

research reports
Letters
Front Matter magazine content
Commentaries
Perspectives
Colloquium Papers