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A person holding marijuana on a white paper.

Health & Medicine

Chemicals in marijuana may affect women’s fertility

THC in marijuana may help eggs become ready for fertilization. But this may come at the cost of more eggs with wrong numbers of chromosomes.

By Sofia Caetano Avritzer4 hours ago

Illustration of NASA's InSight lander sitting on Mars' surface with instruments deployed.

Planetary Science

Seismic waves suggest Mars has a solid heart

By McKenzie Prillaman6 hours ago

A burst of bright spots in the lower left part of this illustration is channeled into a bright beam of light marked by the Greek letter ν to symbolize that it's a beam of neutrinos, not photons or light.

Particle Physics

This laser would shoot beams of neutrinos, not light

By Emily ConoverSeptember 8, 2025

a bunch of red apples

Your red is my red, at least to our brains

By Laura SandersSeptember 8, 2025

A health care worker holds a GLP-1 injector pen in front of a patient.

Health & Medicine

Drugs like Ozempic might lower cancer risk

By Meghan RosenSeptember 8, 2025

A dark, speckled black-bellied salamander with shiny skin rests on bright green moss in a forest setting.

Animals

Just like humans, many animals get more aggressive in the heat

By Katarina ZimmerSeptember 8, 2025

An artist's illustration of a young pterosaur struggling to fly in violent winds.

Young pterosaurs probably died in violent Jurassic storms

By Carolyn GramlingSeptember 5, 2025

We summarize the week's scientific breakthroughs every Thursday.

Spotlight on Health

A blond child wrapped in a duvet blows their nose

A cold today helps keep the COVID away

A recent cold appears to be a defense against COVID-19 and a partial explanation for kids’ tendency toward milder coronavirus infections.

By Aimee CunninghamAugust 29, 2025
A bioengineered protein may someday treat carbon monoxide poisoning
River turbulence can push toxic pollutants into the air

Science News Magazine

September 2025 cover of Science News

September 1, 2025 Vol. 207 No. 9

From the Archives

Space Colonies: Home, Home on Lagrange

September 6, 1975 Vol. 108 No. #10

Featured Media

Here’s how fruit flies’ giant sperm squeeze into tight spaces

Researchers found that fruit fly sperm push against one another and align in orderly bundles, preventing knots that could block reproduction.

A satellite image of Hurricane Katrina just before it makes landfall on the Gulf Coast.

20 years after Hurricane Katrina, is the U.S. better prepared?

NASA’s Webb telescope spotted a new moon orbiting Uranus

image of spectral bats huddled in a ball

These giant carnivorous bats hug, cuddle — and even share dinner

A dying star revealed its heart

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More Stories

Life

A sixth mass extinction? Not so fast, some scientists say

By Jake BuehlerSeptember 4, 2025
Horses may have become rideable with the help of a genetic mutation

By Jake BuehlerAugust 28, 2025
Squashing the spotted lanternfly problem may require enlisting other species

By Erin Garcia de JesúsAugust 8, 2025

Humans

These female divers spend more time underwater than any other humans

By Brianna RandallAugust 18, 2025
Stopping menopausal hormones may require more bone monitoring

By Sofia Caetano AvritzerAugust 12, 2025
Forget discrete droplets. This is how sweat really forms

By Bethany BrookshireJuly 22, 2025

Climate

A Midwest ‘megaflash’ is the longest lightning on record

By Carolyn GramlingJuly 31, 2025
What to know about the extreme U.S. flooding — and ways to stay safe

By Carolyn GramlingJuly 17, 2025
Trees can’t get up and walk away, but forests can

By Sophie HartleyJuly 10, 2025

Astronomy

Astronomers detect the brightest ever fast radio burst

By McKenzie PrillamanSeptember 5, 2025
A newborn planet munches on gas and dust surrounding its host star

By McKenzie PrillamanAugust 29, 2025
The oldest known black hole formed more than 13.3 billion years ago

By McKenzie PrillamanAugust 15, 2025

Physics

Sunlight is all that’s needed to keep these tiny aircraft aloft

By Emily ConoverAugust 13, 2025
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

Health & Medicine

A new antiviral blocks 6 deadly viruses in mice but faces a long road ahead

By Payal DharAugust 27, 2025
Elderly cats with dementia may hold clues for Alzheimer’s

By Claudia López LloredaAugust 26, 2025
Scientists perform the first pig-to-human lung transplant

By Skyler WareAugust 25, 2025

Earth

Useful metals get unearthed in U.S. mines, then they’re tossed

By Nikk OgasaAugust 26, 2025
Why devastating tsunamis didn’t follow the Russia earthquake

By Nikk OgasaJuly 30, 2025
How hot can Earth get? Our planet’s climate history holds clues

By Elise CuttsJuly 17, 2025

Science & Society

Scientists are people too, a new book reminds readers

By Karen KwonAugust 19, 2025
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