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Dark matter experiment catches quietest neutrino ever measured

The XENONnT experiment, in its hunt for dark matter, has detected the rare, feeble glow of neutrinos smacking into electrons

What’s next for NASA’s new Roman Space Telescope?

After a flawless launch, the Nancy Grace Roman Space Telescope is on a mission to solve some of the universe's biggest mysteries

Coral Reefs Are Running Out of Time to Recover, Research Finds

QUINN GLABICKI

Rising sea temperatures mean reefs don’t have enough time to bounce back between intense heat waves, a new report warns.

Study A.I. Consciousness? The Bots Would Like a Word With You.

CADE METZ

Given access to email, A.I. agents have started reaching out to the philosophers and researchers exploring deep questions about them.

Gene-Editing Technology Offers New Ways to Create the Dogs of Our Dreams

EMILY ANTHES

Technologies like CRISPR are giving us new ways to create the dogs of our dreams — and a reason to reckon with our past mistakes.

Growth hormone peptides promise to stall aging—but does the science stack up?

Sermorelin, tesamorelin and other growth hormone peptides are being touted as antiaging elixirs, but what evidence is behind those claims?

How much should a dinosaur cost?

Fossils are selling for tens of millions of dollars at auction. But why are the ancient creatures the hot new thing for the ultrarich?

The brain, solved

The human brain has upward of 86 billion neurons, connected by some 100 trillion synapses

Bonus crossword: Tints of life

Play a bonus science crossword that ties into even more stories from the September 2026 issue of Scientific American.

Where is the Roman Telescope in space?

The Nancy Grace Roman Telescope is headed toward a Lagrange point, a critical position in outer space where gravitational forces behave in specific ways

Why the Grand Canyon flash flood was so devastating

Experts explain why the monsoon storm turned so deadly

Have we finally found dark matter?

The world's biggest dark matter search saw a particle it cannot explain

Ada Yonath, Chemist and First Israeli Woman to Receive a Nobel, Dies at 87

JONATHAN KANDELL

Her mapping of the ribosome, which led to new designs for antibiotics, faced years of derision, as many scientists saw it as a dead-end effort.

Mathematician discovers how to fold the smallest origami doughnut

How many times do you have to fold a piece of paper to make a doughnut? After decades, a mathematician has determined the most efficient technique

Nepal’s deadly debris avalanche is a warning for the rest of the world

Avalanches like the one that devastated parts of Nepal and Tibet are becoming more common thanks to climate change. Here's where else is at risk