Scientific American

Scientific American


Awesome discoveries. Expert insights. Science that shapes the world.

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Scientific American spoke with several experts on aerosol transmission—some of whom have tested various masks available on the market—and they agree that health authorities should strongly recommend people wear well-fitted, high-filtration masks.

Recommended books on animals, migrations, consciousness, nutmeg (really), and animals again.

The first season of @LostWomenofSci  is about Dr. Dorothy Andersen, the physician and pathologist who solved a medical mystery when she identified and defined cystic fibrosis in 1938. Listen to the premiere episode of our new podcast series: 🎧 @prx 

Coronavirus infections might cause lasting harm to the heart, even in those who have never had symptoms.

Sparked by major advances in their field, astrobiologists are grappling with how to best discuss possible breakthrough discoveries with the public.

Watch these 5 key issues in 2022 to see if #COP26  climate promises are kept

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Albatrosses are monogamous and often mate for life, but increased stress can make them break up.

Since the beginning of modern birdsong research, the field has focused on male songbirds. We are missing key behaviors as a result of historical and geographical biases stemming from a lack of diverse participation in science.

The Miller-Urey experiment showed that the conditions of early Earth could be simulated in a glass flask. New research finds the flask itself played an under appreciated, outsized role.

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Scientific American has never endorsed a presidential candidate in our 175-year history—until now. The 2020 election is literally a matter of life and death. We urge you to vote for health, science and Joe Biden for President.

The evidence and the science show that Donald Trump has badly damaged the U.S. and its people—because he rejects evidence and science. The most devastating example is his willfully ignorant response to the COVID-19 pandemic, which cost more than 190,000 Americans their lives.

Editorial: Instead of thinking about whether to vote Democratic or Republican in the upcoming U.S. election, think about voting to protect science instead of destroying it.

More than 200 scientists have outlined evidence that they say shows the novel coronavirus can spread in tiny airborne particles, urging the @WHO  to update its guidance. Read our story on what we know so far about airborne transmission of SARS-CoV-2.

COVID-19 can wreck your heart, even if you haven't had any symptoms

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In Opinion Stop using phony science to justify transphobia. Actual research shows that sex is anything but binary

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Joe Biden will soon be president of the United States, and scientists the world over are breathing a collective sigh of relief.

Freeman Dyson has died at 96. Dyson helped construct the standard model of particle physics, and he envisioned the Singularity decades before that term was adopted. A tribute, by @Horganism .

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