Scientific American

Scientific American


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

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Expelled from the human body—by a cough, say, or a well-placed sneeze–the virus can settle on surfaces, where it sits, microscopic and immobile, for hours or even days. Watch the full video:

“To really clean, from a scientific standpoint, from a technique standpoint, is really an art for a lot of folks." An inept cleaner will miss pathogens. And taking off protective equipment incorrectly can expose cleaners to infection

New research shows the presence and actions of robots affect the way humans relate to other humans.

Prohibiting spouses or doulas during labor and delivery may disproportionately affect populations such as black women, who are already vulnerable to disbelief and mistreatment by hospital staff, writes @mclemoremr  in Opinion.

Astronomers are on the hunt for the remnants of the neutron-star collision that gave Earth its precious metals.

Could chloroquine treat coronavirus? Here are 5 questions answered about a promising yet problematic and unproven use for an antimalarial drug

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Denser cities could spare climate but also increase coronavirus transmission

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Marine animal populations have been shifting away from the equator and toward the poles during the course of the past century.

Several states are reporting only positive COVID-19 test results from private labs, a practice that paints a misleading picture of how fast the disease is spreading.

Deep-learning algorithms are peering into MRIs and x-rays with unmatched vision, but who is to blame when they make a mistake?

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“We are a wave of change. Together and united, we are unstoppable. This is what people power looks like. We will rise to the challenge," said 16-year-old climate activist @GretaThunberg  who led global protests today demanding action on climate change. #ClimateStrike  ? Liz Tormes

Elon Musk seeks to enable humans to “merge” with AI, giving people superhuman intelligence. (By @tanyalewis314 )

Instead of a wall, we could build solar and wind farms, plus 2,000 miles of natural gas and water pipelines to power and supply water for farms and industry along the entire U.S.–Mexico border, creating a zone of opportunity for both countries. Crazy idea?

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Monumental disaster at the Department of the Interior: a new report documents suppression of science, denial of climate change, the silencing and intimidation of staff

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Cardiac coherence breathing exercises can stabilize the heartbeat and have a powerful ability to dampen anxiety.

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A tough but flexible robot unfurls like a plant using a pressurized plastic tube to inch through rugged environments.

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 .

A century of global warming, in just 35 seconds

Confirmed: #LIGO  has detected gravitational waves created by merging black holes

Three percent of the population now owns half of the country’s firearms, a study shows. And the American citizen most likely to own a gun is a white male that meets a very specific profile.

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