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Front Matter

  • Water from a faucet fills a glass.
    News Feature: How “forever chemicals” might impair the immune system
    Researchers are exploring whether these ubiquitous fluorinated molecules might worsen infections or hamper vaccine effectiveness.
  • Venus flytrap captures a fly.
    Journal Club: Venus flytrap mechanism could shed light on how plants sense touch
    One protein seems to play a key role in touch sensitivity for flytraps and other meat-eating plants.
  • Smoke emanates from Japan’s Fukushima nuclear power plant a few days after tsunami damage
    Core Concept: Muography offers a new way to see inside a multitude of objects
    Muons penetrate much further than X-rays, they do essentially zero damage, and they are provided for free by the cosmos.
  • Scientists showing spheres to citizens
    Opinion: Past is future for the era of COVID-19 research in the social sciences
    A number of articles enlist the pandemic to study basic questions about financial investment, education, politics, learning, crime, and other aspects of social life.
  • Plastic bottles at varying degrees of deterioration
    Core Concept: Bioplastics offer carbon-cutting advantages but are no panacea
    Better understanding the tradeoffs presented by different bioplastics should help elucidate which options, if any, are viable replacements over the long run.
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Newsletter

Sign up for the PNAS Highlights newsletter to get in-depth stories of science sent to your inbox twice a month:

News Features

News Feature: A sea in the Amazon
Mar 03, 2021
News Feature: Tracing gold’s cosmic origin story
Jan 20, 2021
News Feature: Realizing the roads of the future
Jan 07, 2021
View more

Opinions

Opinion: Past is future for the era of COVID-19 research in the social sciences
Mar 24, 2021
Opinion: Academic-humanitarian technology partnerships: an unhappy marriage?
Mar 10, 2021
Opinion: A better approach for dealing with reproducibility and replicability in science
Feb 10, 2021
View more

Inner Workings

Inner Workings: Advances in infectious disease treatment promise to expand the pool of donor organs
Feb 17, 2021
Inner Workings: RNA-based pesticides aim to get around resistance problems
Dec 09, 2020
Inner Workings: Early Mars may have boasted a large ocean and cool climate
Dec 02, 2020
View more

Core Concepts

Core Concept: Muography offers a new way to see inside a multitude of objects
Mar 31, 2021
Core Concept: Bioplastics offer carbon-cutting advantages but are no panacea
Mar 17, 2021
Core Concept: Integrated assessment climate policy models have proven useful, with caveats
Feb 24, 2021
View more

Science and Culture

Science and Culture: Expedition artists paint a picture of science exploration
Feb 03, 2021
Science and Culture: At the nexus of music and medicine, some see treatments for disease
Jan 13, 2021
Science and Culture: Astronomer-turned-filmmaker strives to ignite an interest in space
Dec 23, 2020
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Journal Club

Highlighting recent, timely papers selected by Academy member labs

Small, sharp blades mark the change from Middle to Later Stone Age in coastal Kenya

Venus flytrap mechanism could shed light on how plants sense touch

Lab-cultured mouse embryos, grown for an extended period, offer a new window on fetal development

Massive study suggests chimp populations mixed more recently than previously reported

View more

Profiles / Retrospectives / QnAs

Dr. Takashi Sugimura: A giant of chemical carcinogenesis

March 2, 2021

Profile of Nora J. Besansky

March 2, 2021

Harold A. Scheraga (10/18/1921–8/1/2020): A pioneering scientist who laid the foundations of protein science in the 20th century

February 23, 2021

Profile of Mark Stoneking

February 23, 2021

Arthur Ashkin: Father of the optical tweezers

February 16, 2021

View More

Science Sessions Podcast

Exploring the length of human conversations

Illustration of groups of people chatting

Adam Mastroianni and Daniel Gilbert explore why conversations almost never end when people want them to.

Listen »|  Transcript »|  Subscribe »| 

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About

PNAS Front Matter delves into the stories of science. The section’s News Features cover research trends in depth, Opinion pieces further the debate on topics of interest to scientists and other readers with a keen interest in science, Inner Workings explore cutting-edge methods or approaches, Core Concepts are substantive explanations of timely terms, and Science and Culture articles feature intersections between research and aspects of culture. Journal Club blog posts are short news stories featuring a recent important, timely journal article selected by one of our Journal Club panelists, who are postdocs and graduate students in NAS members’ labs.

Science Sessions podcasts present brief conversations on topics relevant to today's scientific community, Profiles highlight the life and work of NAS members, QnAs are conversations with PNAS authors, and Retrospectives memorialize recently deceased NAS members.

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