Scientific American

Deep surveys of the sky have turned up galaxies vastly larger than our own. Are there even bigger ones yet to be seen?

Unseasonably hot weather in Europe has already claimed at least 18 lives. And history shows more are likely on the way

A chatbot’s result for the 80-year-old “unit distance” conjecture is the first AI proof that would likely be published in math’s top journal if humans had done it alone

Some neuroscientists argue that the roots of experience lie deep inside the brain. If they’re right, the consciousness club will get a lot bigger

These proposed Office of Management and Budget regulations would render the federal research grant review process opaque

Wemby’s height gives him an advantage in blocking and rebounding, but how does the tallest player in the NBA keep hitting all those threes?

A near-miss incident and a deadly chemical accident in a single week have affected thousands and drawn scrutiny to federal rules around risk management at chemical plants

Put your science knowledge to the test with this week’s news quiz. Play now.

How animals use Earth’s magnetic field to navigate is one of biology’s biggest unsolved mysteries. This study proposes a totally new source for the sixth sense

The intimidating legacy of the scariest problem in mathematics

A new look at how everything from handwriting to AI quietly reshapes our bodies, habits and sense of connection

A record-setting collection of precisely measured gravitational waves reveals new information about how black holes behave and evolve

Debate still swirls around the nature of “little red dots,” black holes glimpsed in the early universe by the James Webb Space Telescope. A controversial new weigh-in may settle the matter

Biochemist Kamala Baghvat, later known as Kamala Sohonie, forced open the doors of India’s male-only laboratories and used her knowledge to help feed a nation

A statement can be true or false. But as Kurt Gödel demonstrated, there will always be mathematical assumptions that can neither be proven nor disproven

Weapons-grade plutonium can fuel nuclear reactors known as mixed oxide reactors, but none of these exist in the U.S.

Generating and confirming the randomness of qubits could lead to breakthroughs in computer data encryption

A battle between “slimes” and “zoglins” could be the best way to calculate pi—at least for fans of this megahit game

The discarded fragments of this creature apparently refuse to die, leading researchers to claim immortality

A new study could help identify promising treatments to extend the human lifespan, researchers say

Our universe appears flat—but this observation still leaves plenty of options for its true shape. In fact, our cosmos could resemble a donut

At an event at NASA Headquarters, space agency officials unveiled the first rovers and landers headed to the future site of its planned lunar south pole outpost

This teensy creature was discovered along a deep-sea mountain

Advances in quantum technology might allow astronomers to circumvent age-old issues that limit the size of optical observatories

Scientists are working to solve a mystery of Earth’s molten outer core, which lies more than 2,000 kilometers beneath our feet

A small, aging fleet repairs the fiber-optic cables that carry data around the globe, and conflict zones can slow that work to a crawl

There Is No Antimemetics Division explores how to survive when memories and meaning are malleable

This eerily simple math says our days are numbered—and nobody can agree why it’s wrong

Like modern crocodiles, this bizarre ancient reptile was likely a carnivore, but otherwise it bears little resemblance to them

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

The trend of attorneys getting caught citing AI-hallucinated cases points to a broader problem: instead of checking AI’s work, people keep trusting it

Friday’s test flight marks a major milestone for SpaceX as the company gears up to go public and to participate in NASA’s Artemis III mission in 2027

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