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Close-up of a person walking on a paved outdoor path, wearing black leggings and athletic shoes, with green trees and foliage in the background.

Health & Medicine

How many steps a day do you really need to take?

An analysis of 57 studies shows that people who walked a certain number of steps were less likely to die from any cause compared with those who walked less.

By Skyler Ware12 minutes ago

photo shows a cluster of white mushrooms growing on a log covered in green moss. The mushrooms are centered and photographed so that the bottom part of the mushroom heads are visible.

Health & Medicine

Climate change may be pushing fungal allergy season earlier

By Erin Garcia de Jesús6 hours ago

Illustrated snippets of ancient Roman life, featuring segmented scenes including a red-roofed temple, a Roman warship, an arched city gate with docked boats, soldiers marching, people farming and a marketplace with statues and smoke. The base is inscribed with Latin text.

AI reveals new details about a famous Latin inscription

By Tom Metcalfe8 hours ago

A closeup of a woman's face that's covered with sweat.

Humans

Forget discrete droplets. This is how sweat really forms

By Bethany Brookshire24 hours ago

Screen addiction, rather than screen time, hurts teen mental health

Science & Society

Screen addiction affects teens’ mental health. How to spot it, and help

By Sujata GuptaJuly 22, 2025

A wooden sign is shown positioned along a road with a spray painted message that says "measles testing" in black. A red arrow points to the left. The sign is next to a permanent sign for Memorial Hospital, Seminole Hospital District.

Health & Medicine

U.S. measles outbreaks may end a hard-won victory over the virus

By Erin Garcia de JesúsJuly 22, 2025

Blurry astronomical image showing the star Betelgeuse as a bright, orange circular blob against a dark background with a smaller, faint blue spot to the lower left.

Betelgeuse’s companion star revealed in new images

By Mara Johnson-GrohJuly 21, 2025

We summarize the week's scientific breakthroughs every Thursday.

Spotlight on Health

A box of capsules containing menopause estrogen treatment for vaginal use

U.S. FDA may nix black box warning on some menopause estrogen treatments

Experts worry the warning on vaginal estrogen menopause treatments is doing more harm than good and is not supported by science.

By Tina Hesman Saey and Sofia Caetano AvritzerJuly 18, 2025
No, shaken baby syndrome has not been discredited
Protein signatures may one day tell brain diseases apart before symptoms

Science News Magazine

A montage of illustrations showing various times in our planet's history, from its fiery origins, through the dawn of life, dinosaurs and more.

August 1, 2025 Vol. 207 No. 8

From the Archives

Summit in Space: The First Step Taken

July 26, 1975 Vol. 108 No. #4

Featured Media

A satellite image of heavy precipitation over the United States on July 17, which may cause more flooding.

What to know about the extreme U.S. flooding — and ways to stay safe

An oceanographer explains how climate change, warming oceans and a souped-up atmosphere are creating conditions for deadly floods.

A small white dog sits on a gray couch facing the TV, with a small box of popcorn next to it

A dog’s taste for TV may depend on its temperament

Image of a fossilized dinosaur footprint.

How fast did dinosaurs really go? Birds walking in mud provide new clues

An illustration of the New Horizons probe in front of Pluto, with its moon Charon in the background.

New Horizons visited Pluto 10 years ago. We’re still learning from it

A looping video of a small, six-legged robot with sensors walking steadily forward along a narrow gravel path in a lush garden setting.

A new ‘eye’ may radically change how robots see

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More Stories

Life

This killer fungus strikes at sunset. Here’s how

By Meghan RosenJuly 21, 2025
Why these zombie caterpillars can’t stop eating

By Susan MiliusJuly 8, 2025
A 3-D printed, plastic beaker could help algae grow on Mars

By Erin Garcia de JesúsJuly 2, 2025

Humans

A child’s biological sex may not always be a random 50-50 chance

By Jake BuehlerJuly 18, 2025
100 years after the Scopes trial, science is still under attack

By Darren IncorvaiaJune 16, 2025
FDA cuts imperil food safety, but not how you might think

By Meghan RosenJune 9, 2025

Climate

Trees can’t get up and walk away, but forests can

By Sophie HartleyJuly 10, 2025
Climate change could separate vanilla plants and their pollinators

By Bethany BrookshireJuly 3, 2025
Harmful heat doesn’t always come in waves

By Nikk OgasaJune 27, 2025

Astronomy

Nearly half of the universe’s ordinary matter was uncharted, until now

By McKenzie PrillamanJuly 3, 2025
A rare chance to see two exploding stars is happening in the southern sky

By McKenzie PrillamanJuly 1, 2025
Mysterious ‘little red dot’ galaxies have a possible origin story

By Ken CroswellJune 27, 2025

Physics

Scientists 3-D printed a tiny elephant inside a cell

By Emily ConoverJuly 8, 2025
No player can return this killer shot. Physics explains how it works

By Celina ZhaoJune 24, 2025
Rainbows of sound are a reality thanks to a new device

By Emily ConoverJune 11, 2025

Health & Medicine

Here’s how air pollution may trigger lung cancer

By Meghan RosenJuly 21, 2025
‘Rehab’ exposes the dark underside of U.S. drug treatment centers

By Meghan RosenJuly 18, 2025
Organ age, not just your birthday, may determine your health risks

By Celina ZhaoJuly 15, 2025

Earth

How hot can Earth get? Our planet’s climate history holds clues

By Elise CuttsJuly 17, 2025
An ancient Earth impact could help in the search for Martian life

By Douglas FoxJuly 9, 2025
NASA images may help track sewage in coastal waters

By Sofia Caetano AvritzerJuly 7, 2025

Science & Society

A Supreme Court ruling on nuclear waste spotlights U.S. storage woes

By Emily ConoverJune 18, 2025
How attacks on evolution in classrooms have shifted over the last 100 years

By Erin WaymanJune 17, 2025
Is nuclear energy good? A new book explores this complex question

By Alka Tripathy-LangJune 17, 2025