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Science and armed conflict

Amid vaccine policy whiplash, here’s how a pediatrician talks to families

How realistic is Project Hail Mary?

Check out 6 ways orchids use tricks to reproduce

Mosquitoes get the ‘I’m full’ signal from their butts, not their brains

GLP-1 microdosers are chasing longevity

Math puzzle: Fresh gridflowers

Earth’s continental plates were moving 3.48 billion years ago

A new study questions when people first reached South America

How warming is shifting microbial worlds

A static electricity mystery comes to the surface

To make a ‘Snowball Earth,’ sci-fi moves fast. Geology is far slower

Sharks are ingesting drugs in the Bahamas

Platypus fur has a surprising feature seen only in bird feathers

City skylines influence cloud formation above them

Are pig organs the future of transplantation?

Smartwatch data can be used to assess early diabetes risk

Extreme heat is cutting the time people can safely be active outdoors

Wild monkeys invaded Florida. Should people protect them?

Yaks may hint at a way to treat brain diseases like MS

A newfound blood biomarker may one day predict longevity

Why we fail to notice climate change

A large fossil leg bone hints at T. rex’s origins, but scientists disagree

Why African striped mice can be the best of dads — or the worst

AI may be giving teens bad nutrition advice

One possible recipe for life on Titan is a bust

AI auto-complete may subtly shape views on social issues

The Amazon molly — a sex-skipping fish — hacks evolution

A strange ‘chirp’ in a brilliant stellar blast points to a magnetar

Submerged bumblebee queens breathe underwater

‘Smart underwear’ measures how often humans fart

Tree tops sparkle with electricity during thunderstorms

When the pressure’s off, this superconductor appears to break records

Lakes are growing in Alaska. That’s not entirely a bad thing

How does early pregnancy lower breast cancer risk? Odd cells could offer clues

NASA’s DART spacecraft changed an asteroid’s orbit around the sun

The remarkable brains of ‘SuperAgers’ hold clues about how we age

Robots with fingernails can grasp thin edges

A koala population’s rapid rebound may let it escape inbreeding’s perils

This molecule puts a new twist on the Möbius strip

Chickpeas can grow in moon dirt and make seeds

A Titan collision may link Saturn’s tilt, its moon Hyperion and its rings

Hundreds of studies have missed how much the oceans are rising

A chemical ‘Goldilocks zone’ may limit which planets can host life

Cockroaches that eat each other’s wings turn into a fierce fighting force

The right sounds may turn sleep into a problem-solving tool

Over 40? Your rotator cuff probably looks a little rough

Simulations of your gut may predict which probiotics will stick

A rising percentage of U.S. teens aren’t getting enough sleep

The ancient human ancestor ‘Little Foot’ gets a new face