Science Quickly

Claims that Przewalski’s horses were discovered in the U.S. are unverified. But the conservation story behind the last truly wild horse is worth your time.

It’s well known that petrochemicals are toxic to our health. Here’s how to steer clear of these by-products of the fossil-fuel industry.

Emergency access to abortion is preserved—for now. Also, NASA postpones the return of Starliner astronauts, and we’re tracking the spread of bird flu, dengue and mpox.

Get a behind-the-scenes look at how researchers live and work on a U.S. icebreaker making its way through the waters of West Antarctica.

Heat waves are getting hotter, more frequent and longer. But there are ways to keep yourself and your community cool.

Microplastics are everywhere, Olympic ambitions for the Seine River are complicated by poop, and the Starliner spacecraft delays its return to Earth.

To unravel the effects of melting sea ice, researchers drill the frozen waters around Antarctica and receive a surprise visit from a group of penguins.

A nuclear explosion in space would cause stunning auroras—and wreak havoc on satellites and space stations.

Sweltering heat in Greece, ozone-damaging chemicals on the decline and an investigation of what space does to our body are all in this week’s news roundup.

Researchers are investigating how an iron infusion from glacial meltwater might change Antarctica’s seas and the climate.

Chemists are hard at work figuring out how to make tattoos last—and ensure they’re safe.

The Hubble Space Telescope’s woes, moon rocks and antibiotic candidates discovered with AI are all in this week’s news roundup.