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Is Earth the only planet with total solar eclipses?

Other planets have moons, too. Do they get eclipses like we do?

Why the controversy over de-extinction risks missing the point

Efforts to revive the thylacine and woolly mammoth are forcing conservationists to face a long-overdue debate over what kind of natural world we want to build

Advanced Recycling Hits a Rough Patch

HIROKO TABUCHI

In the past weeks, two sites in the United States have halted operations.

New York Sues Companies Over ‘Forever Chemicals’

CHRISTINA CARON AND HILARY HOWARD

The lawsuit claims that the companies, including 3M and DuPont, contaminated the environment and engaged in fraud by withholding information from the public about the harms of the chemicals, known as PFAS.

Chernobyl’s Wildlife Cameras Reveal How War Affects Wild Animals

EMILY ANTHES

A rare camera-trap study logged the effects of armed conflict on wild animals in real time.

She Studied Ways to Make People Smarter. Then Her Grant Was Cut.

SACHI KITAJIMA MULKEY

Jessica Cantlon had a grant with the U.S. Navy to explore whether people could improve spatial problem-solving skills through training. Then the program was cut.

How could loosened radiation exposure rules affect public health?

A proposed rule change could expose more Americans to higher doses of radiation from nuclear facilities

Odds of a Super El Niño are rising, and that could have deadly consequences

This climate system is tied to more powerful typhoons, as well as famine and wildfires

China’s Long March 10B rocket successfully launches—and lands—in a global spaceflight milestone

The inaugural launch and first-stage booster recovery of China's Long March 10B rocket intensifies the nation's spaceflight rivalry with the U.S.

U.S. Department of Energy Underestimated Potential Los Alamos Plutonium Leak Danger, Study Finds

ALICIA INEZ GUZMÁN

An accident at the lab that produces America’s nuclear bomb cores could lead to more fatalities than previously estimated by the federal government, according to new research.

Your Cat Is Being Nice? Think Again.

TAYLOR MITCHELL BROWN

A new study finds that sometimes cats groom each other specifically to be annoying.

Joseph Fraumeni, 93, Dies; Helped Discover Genetic Link to Cancer

TRIP GABRIEL

Considered the founder of molecular epidemiology, he worked with Frederick P. Li to identify a hereditary disorder that increased the risk of developing cancer at a young age.

What China’s Successful Rocket Launch Means for the Future of the Space Race

KENNETH CHANG

A space neophyte not long ago, China is now the United State’s main competitor for supremacy throughout the solar system.

F.C.C. Approves Test of Space Mirror to Light Night Sky Despite Outcry

HIROKO TABUCHI

A start-up company has permission to try its plan to bounce solar rays onto the dark side of Earth, turning night to day for a three-mile-wide patch.

I.U.C.N. Update Says Deep-Sea Mining Threatens Mollusks Around Hydrothermal Vents

CATRIN EINHORN

The snails and other mollusks around hydrothermal vents have evolved to thrive in extreme conditions, but mineral extraction could drive more than half to extinction.