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Earth’s magnetic field may be more powerful than we thought

A major defense against everything space throws at us, Earth's magnetic field may even protect the moon from damaging galactic cosmic rays

Jury finds Meta and YouTube negligent in landmark federal social media addiction case

A federal trial jury found that Meta and YouTube are offering products that are addictive and harmful to young users' mental health

Top climate scientist Kate Marvel just resigned from NASA. Here's why

Climate scientist Kate Marvel talked to Scientific American about her decision to leave NASA amid federal government turmoil and funding challenges

NASA releases stunning new Saturn images—and the gas giant has never looked so good

New images captured by the Hubble and James Webb space telescopes show Saturn in both visible and infrared light

Heisuke Hironaka, Groundbreaking Mathematician, Is Dead at 94

KENNETH CHANG

A recipient of his profession’s prestigious Fields Medal, he devised an algorithm that helps solve mathematical “singularities.” It now permeates the field.

Maryland Supreme Court Strikes Down Local Climate Suit Against Big Oil

KAREN ZRAICK

The decision represents a setback to other local governments around the country that have sued oil companies to recoup the mounting costs of climate change.

How hacked surveillance cameras are fueling assassinations in Iran

Security feeds and traffic cameras have helped guide some of the most audacious targeted killings in modern history. Security researchers say the underlying vulnerabilities cover the planet and are easy to exploit

Why mathematicians are boycotting their biggest conference

More than 1,500 mathematicians are demanding that their field's most prestigious meeting be moved from the U.S.

Inside NASA’s audacious plan to save a doomed space telescope

NASA's Swift space telescope is doomed to burn up in Earth's atmosphere later this year. A daring mission to boost it to safety could have big implications for science

Does red-light therapy work? What the research says

People are buying helmets, face masks, vests and beds that emit long-wavelength light. Beneath the hype, there is some interesting biology.

What happens when AI starts checking mathematicians’ work

A start-up has surprised the scientific community with a breakthrough: translating a modern proof into a programming language for verification using AI. But not everyone is celebrating

Human sperm get lost in space, pioneering study finds

Researchers put human sperm inside a uterus-like simulation under zero gravity conditions. It did not go well

Why your psoriasis flares up in the same spots

Skin conditions such as psoriasis often flare up in the same spots throughout one's life. Now scientists think they know why

Arctic sea ice hits lowest winter level on record

The Arctic sea ice maximum this year effectively tied for the lowest ever on record, with major implications for polar ecosystems and global warming

Sperm whales help one another give birth, new study finds

Sperm whales are known to socialize, but scientists were stunned when they saw a group of sperm whales gather as one of them gave birth