The Royal Swedish Academy of Sciences awarded the 2025 Nobel Prize in Physics jointly to John Clarke, Michel H. Devoret, and John M. Martinis for their foundational discovery of macroscopic quantum ...

In iron-based superconductors, the dz2 orbital band lies deep below the Fermi energy and is conventionally excluded from the superconducting pairing process. This work overturns this view. Using a ...

Edited by Steven A. Kivelson, Stanford University, Stanford, CA, and approved February 8, 2019 (received for review October 12, 2018) ...

Contributed by Joseph S. Francisco; received February 25, 2026; accepted May 6, 2026; reviewed by Xinlei Ge and Roy M Harrison ...

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Microdroplets in the natural environment. H 2 O 2 is spontaneously produced in microdroplets with diameter of less than ∼20 µm, but not in bulk water. In PNAS, Lee et al. report experimental evidence ...

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Note: The article usage is presented with a three- to four-day delay and will update daily once available. Due to ths delay, usage data will not appear immediately following publication. Citation ...

A new ferredoxin-dependent carbon reduction cycle in a photosynthetic bacterium. M C Evans, B B Buchanan, and D I Arnon Authors Info & Affiliations ...

Note: The article usage is presented with a three- to four-day delay and will update daily once available. Due to ths delay, usage data will not appear immediately following publication. Citation ...

Note: The article usage is presented with a three- to four-day delay and will update daily once available. Due to ths delay, usage data will not appear immediately following publication. Citation ...

The Proceedings of the National Academy of Sciences (PNAS) and its open access sibling journal PNAS Nexus, are both nonprofit mission-driven journals published by the National Academy of Sciences (NAS ...