In 2013, a vaccine policy inadvertently launched a massive natural experiment that would offer new clues about the roots of ...

Pseudo-colored amoebae explore the openings of two-micrometer channels. Lysergic acid diethylamide (LSD) is a well-known psychedelic drug. Although it holds promise as a potential treatment for some ...

PNAS has partnered with the Lasker Foundation to shine a spotlight on this year’s Lasker Awards and their recipients. The Lasker Awards program was created in 1945 by Albert and Mary Lasker. The ...

Honey bee stingers detach from the bee and continue to penetrate tissue while autonomously pumping venom. Yet the underlying mechanics have remained poorly understood. Using high-speed videography, ...

Near-infrared image of Uranus and its moons from the James Webb Space Telescope. Image credit: NASA’s James Webb Space Telescope. The spin axis of Uranus is tilted by 98° relative to the Solar System, ...

Institutional legitimacy is essential for democracies, yet public trust and confidence in the United States Congress are at an all-time low. A significant predictor of attitudes toward Congress is ...

Open in Viewer RoBMA PSMA model-averaged posterior mean effect size estimates with 95% credible intervals and Bayes factors for the absence of the effect for the combined sample or split by either the ...

As policy makers are increasingly interested in implementing nudge-type interventions, it is essential that we understand under what conditions they can improve policy-relevant outcomes to make the ...

The biological carbon pump (BCP) stores ∼1,700 Pg C from the atmosphere in the ocean interior, but the magnitude and direction of future changes in carbon sequestration by the BCP are uncertain. We ...

Widespread consumption of the genetically modified rice variety known as Golden Rice offers a potent and cost-effective strategy to combat vitamin A deficiency. Image credit: International Rice ...

Levy and Calvert (19) build on the earlier literature by focusing primarily on the relative power committed to different modes of information processing in the human brain, rather than on different ...

Historical LUC emissions (red line) with uncertainties (gray shading) (5), RCP (blue lines), and Schwalm et al. linear projection based on the 2005–2019 trend (dashed black line). The SSPs (gray lines ...