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PNAS commits to immediately and freely sharing research data and findings relevant to the novel coronavirus (COVID-19) outbreak.
See the free collection of PNAS coronavirus papers and learn more about our response to COVID-19.
See the free collection of PNAS coronavirus papers and learn more about our response to COVID-19.
Front Matter
We need a deliberative process that’s transparent, politically neutral, scientifically balanced, and representative of all relevant disciplines and expertise.
Image credit: Shutterstock/solarseven.
Astronomers ostensibly know plenty about neutron stars. And yet, exactly what’s contained in these frequent precursors to black holes remains an open question.
Image credit: NASA’s Goddard Space Flight Center.
The tendency seems to allow miniaturized organisms to pack enough cells into a tiny form to build a complex physiology.
Image credit: Louis Paul Decena-Segarra.
In the News
Neural signatures of complex cognitive processing can occur in the absence of visual awareness, according to a case study of a person with distorted visual perception.
Carp can disperse their eggs via the digestive system of ducks, and dispersal of a single Prussian carp egg could establish a new population, according to a study.
Image credit: SГЎndor Borza (photographer).
A study suggests that an asteroid impact, not volcanic activity, was the main cause of nonavian dinosaur extinction.
Image credit: Fabio Manucci (artist).
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Science Sessions Podcasts
Brian Fields explores a hypothesis that a supernova may be responsible for a mass extinction.
Featured Profile
Profile of NAS member and engineer Subra Suresh
Image credit: Nanyang Technological University, Singapore.
