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NOAA predicts quieter Atlantic hurricane season for 2026—but the Pacific is another story

This year's expected El Niño could hamper hurricanes in the Atlantic but boost them in the central and eastern Pacific

Fish and Wildlife Service Clears a Weedkiller, Saying It Won’t Cause Extinction

HIROKO TABUCHI

The finding effectively paves the way for continued use of atrazine, a widely used herbicide that has been linked to birth defects and cancer in humans.

When Humans Went Away, the Wildlife Strayed

EMILY ANTHES

When people disappeared from the landscape, as they did during the pandemic, wild animals changed how they used space and resources, scientists found.

A Very Lonely Caterpillar, Possibly the Last of Its Kind, Has Died

CATRIN EINHORN

The Sacramento Mountains checkerspot butterfly hasn’t been seen in the wild since 2022. The caterpillar was the last individual in human care.

Scientists discover why gold doesn’t ‘rust’

Gold doesn't tarnish like similar metals do. A new paper says that the key is the intricate "herringbone" pattern of its atoms.

A new study says you need 10 hours of exercise a week. Can that really be possible?

Experts question this study's design and its recommendations—and point out that you probably get more exercise than you think

Hantavirus found in shocking number of Pacific Northwest rodents

The critters were carrying the Sin Nombre variant of hantavirus, which can be spread from rodents to humans, but not from one person to another

Hidden structural features inside Egypt’s Great Pyramid may have helped it withstand earthquakes, new study finds

Constructed by ancient Egyptians, the Great Pyramid has survived multiple earthquakes through the ages—now researchers think they know why

JWST sees partly cloudy skies on a distant, giant exoplanet

An out-of-this-world weather report from NASA's James Webb Space Telescope reveals how clouds move across a giant planet hundreds of light-years from Earth

SpaceX scrubs launch of Starship V3—the tallest and most powerful rocket ever built

The launch, when it comes, will mark the 12th flight test of Starship and the first demonstration of its V3 design—a new attempt could come as soon as Friday

Europe’s Green-Energy Future Has a Reindeer Problem

ALEXA ROBLES-GIL, SACHI KITAJIMA MULKEY AND MICHAL SIAREK

In northern Norway, Sami people fear a copper mine will disrupt their traditional lifestyles.

What is E15 fuel? Why higher-ethanol gasoline could raise summer smog levels

In an effort to reduce prices at the pump, an EPA wavier allows the sale of fuel with 15 percent ethanol content

Bixonimania’—the fake illness that AI fell for

How an experiment involving a made-up skin condition exposes the risks of increasingly popular AI medical advice

A New Era of Exploring the Universe in Radio

KATRINA MILLER

With 263 antennas spread across the U.S. and Mexico, the Next Generation Very Large Array, would join a new wave of radio astronomy.

What will happen if the Milky Way and Andromeda galaxies collide?

Our galaxy and its nearest large companion, Andromeda, may be headed for a collision on a cosmic scale. What happens then?