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Two side-by-side images and closeups of their eyes (displayed under their images) reveal that the image on the left is a real picture of the actress Scarlett Johansson while the image on the right is AI-generated. The tip-off is that the reflections in their left and right eyes don't match.

Artificial Intelligence

Want to spot a deepfake? The eyes could be a giveaway

Reflections in the eyes of AI-generated images of people don’t always match up, researchers report.

By Ananya4 hours ago

Stock photo of a small white dog in a black travel carrier. In the background, a person in a suit is standing in an airplane.

Health & Medicine

The CDC has tightened rabies regulations for imported dogs. Here’s why

By Claire Yuan6 hours ago

A girl in a raincoat holding an umbrella

Health & Medicine

Some ‘forever chemicals’ may be absorbed through our skin

By Abdullahi TsanniJuly 31, 2024

A photo of a hand with a paper cut on the index finger.

Physics

Paper cut physics pinpoints the most hazardous types of paper

By Emily ConoverJuly 31, 2024

a rust colored spotted butterfly on purple flowers

Animals

Static electricity may help butterflies and moths gather pollen on the fly

By Anna GibbsJuly 31, 2024

Satellite image of clouds blown by the jet stream.

Climate

Earth’s jet stream helps create the seeds of clouds

By Carolyn GramlingJuly 30, 2024

An illustrated brain is outlined in blue on a black background. An area of the brain stem at the base of the brain is highlighted in orangy-red. This area is a target for a potential treatment aimed at reversing the wasting that comes along with advanced cancer.

Health & Medicine

Stopping cachexia at its source could reverse wasting from cancer

By Kristel TjandraJuly 30, 2024

Spotlight on Health

Stock photo of a small white dog in a black travel carrier. In the background, a person in a suit is standing in an airplane.

The CDC has tightened rabies regulations for imported dogs. Here’s why

Dog rabies was eliminated in the United States in 2007. The new rules on bringing dogs into the country aim to keep it that way.

By Claire Yuan6 hours ago
Some ‘forever chemicals’ may be absorbed through our skin
Stopping cachexia at its source could reverse wasting from cancer

From the Archives

Science Enters Olympics

July 17, 1948 Vol. 54 No. #3

Science News Magazine

July 13, 2024 cover

July 13, 2024 Vol. 206 No. 01

The Science of the Olympics

Usain Bolt crouches next to a digital display showing his new world record while pointing to a crowd in a stadium

World record speeds for two Olympics events have fallen over time. We can go faster

photo of Simone Biles at the Olympics

How mindfulness-based training can give elite athletes a mental edge

An underwater photo of a diver after entering the water with diving boards visible above the water line

Physicists explain how to execute a nearly splashless dive

javelin throw

Why modern javelin throwers hurled Neandertal spears at hay bales

female rowers

Strong-armed women helped power Europe’s ancient farming revolution

A photo of several marathon runners running from left to right across the frame.

Brain tissue may be fuel for marathon runners

distance runner

Gut microbes might help elite athletes boost their physical performance

muscular legs of a bicyclist

Endurance training leaves no memory in muscles

a woman running along a rocky shore, with a phone strapped to her arm

Joggers naturally pace themselves to conserve energy even on short runs

pill man

For athletes, antioxidant pills may not help performance

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Life

This protist unfolds its ‘neck’ up to 30 times its body length to scout prey

By Erin Garcia de JesúsJune 6, 2024
The largest known genome belongs to a tiny fern

By Jake BuehlerMay 31, 2024
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Humans

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Climate

Earth keeps breaking global heat records

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Astronomy

The North Star is much heavier than previously thought

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A middleweight black hole has been spotted for the first time in our galaxy

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Physics

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Health & Medicine

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A new algae-based menstrual pad could stop leaks

By Claire YuanJuly 26, 2024
Sepsis tests take days, putting patients at risk. A new method may cut wait time

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Earth

An ancient earthquake changed the course of the Ganges River

By Sid PerkinsJune 28, 2024
Something weird is happening to Earth’s inner core

By Nikk OgasaJune 25, 2024
50 years ago, the sun’s influence on Earth’s lightning was revealed

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Science & Society

‘After 1177 B.C.’ describes how societies fared when the Bronze Age ended

By Bruce BowerJune 18, 2024
Scientists are fixing flawed forensics that can lead to wrongful convictions

By Amber DanceJune 6, 2024
Language models may miss signs of depression in Black people’s Facebook posts

By Sujata GuptaApril 22, 2024