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Probiotic bacteria like those in yogurt don't protect against pathogens equally well. In this picture a woman's hands are visible holding a container of yogurt in the dairy aisle of a grocery store.

Health & Medicine

Some probiotics could feed, rather than fend off, infections

Probiotics containing Lactobacillus gasseri Lg-36 prevented C. difficile infections in mice, but L. acidophilus probiotics made infection more likely.

By Tina Hesman Saey4 hours ago

An illustration of the James Webb Space Telescope looking at a black hole with star matter spread in a disk around it.

The Webb space telescope spies its first black holes snacking on stars

By McKenzie Prillaman6 hours ago

A image of baby feet

Health & Medicine

Some U.S. newborns still get HIV despite efforts to screen for it. Here’s why

By Sara Novak8 hours ago

A new species of ‘penis worm’ was discovered in the Grand Canyon

By Nikk OgasaJuly 31, 2025

A bin divided diagonally in half shows tomatoes in one section and potatoes in another.

Plants

Potatoes have their roots in ancient tomatoes

By Javier BarbuzanoJuly 31, 2025

A visualization of a the longest lightning megaflash ever recorded, which lit up the sky in October 2017 over the U.S. Midwest.

Climate

A Midwest ‘megaflash’ is the longest lightning on record

By Carolyn GramlingJuly 31, 2025

waves are shown from above moving towards a coastline

Earth

Why devastating tsunamis didn’t follow the Russia earthquake

By Nikk OgasaJuly 30, 2025

We summarize the week's scientific breakthroughs every Thursday.

Spotlight on Health

A large crowd of children stretch out plates and pots over a wooden railing toward a person dishing out food.

Malnutrition’s effects on the body don’t end when food arrives

Children may struggle with inflammation, a weakened immune system and gut problems. New treatments may repair some damage.

By Tina Hesman SaeyMay 28, 2024
AI is designing proteins that could help treat cancer
An injected gel could make drugs like Ozempic last longer

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

Gauging Growth in Microecosystems

July 26, 1975 Vol. 108 No. #4

Featured Media

Two orcas breaching the surface as they swim in the middle of the ocean

Some killer whales hunt in pairs to maximize their bounty

Drone footage from Norway shows killer whales using a highly coordinated and cooperative hunting technique to catch herring.

Melanoma cells appear in red among other shapes on a gray background in this microscopic image. Melanoma cells crumble and die after being treated with human immune cells genetically engineered to include AI-designed proteins that target cancer.

AI is designing proteins that could help treat cancer

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.

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

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

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

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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

Forget discrete droplets. This is how sweat really forms

By Bethany BrookshireJuly 22, 2025
A child’s biological sex may not always be a random 50-50 chance

By Jake BuehlerJuly 18, 2025
No, shaken baby syndrome has not been discredited

By Tara HaelleJuly 16, 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

Two colliding galaxies may have birthed this black hole

By McKenzie PrillamanJuly 29, 2025
Betelgeuse’s companion star revealed in new images

By Mara Johnson-GrohJuly 21, 2025
Nearly half of the universe’s ordinary matter was uncharted, until now

By McKenzie PrillamanJuly 3, 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

A molecule produced by gut microbes may help spur heart disease

By Aimee CunninghamJuly 30, 2025
You may already have some protection from bird flu, but don’t count on it

By Tina Hesman SaeyJuly 29, 2025
Seeing sick faces may prime the immune system to repel invaders

By Simon MakinJuly 28, 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

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

By Sujata GuptaJuly 22, 2025
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