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What if ‘consciousness’ isn’t real?

Our understanding of consciousness could be fundamentally wrong

The Pentagon tests lasers and microwaves against drone swarms

After decades of hype, directed-energy weapons may offer the U.S. military a cheaper answer to the expensive problem of stopping drones

Readers respond to the May 2026 issue

Letters to the editors for the May 2026 issue of Scientific American

Are darker egg yolks really healthier?

Deep-orange yolks could have a slight health benefit, but it's easy for producers to fake it

Why we love unexplainable mysteries

The biggest questions in science inspire us even when we lack answers

See how gravitational waves warp time and space

The latest gravitational-wave discoveries include record-breaking cataclysms

What are the smallest pieces of the universe?

Physicists are searching for what lies underneath the particles we know

The questions science may never answer

Will some of the biggest mysteries in science remain forever unsolved?

October 2026: Science history from 50, 100 and 150 years ago

Smallpox eradication; skyscraper excavations; research on the racetrack

Google DeepMind wants Gemini to power many different robots

The company's push into physical AI is putting Gemini inside humanoids—and testing whether its intelligence can survive in the real world

How apple detectives solved the mystery of an ancient tree—and rewrote the history of fruit

And how they might have helped save the future of American apples

Science crossword: Broken thoughts

Play this crossword inspired by the October 2026 issue of Scientific American

Will we ever know how life began?

Scientists disagree on how biology got started and on whether we can ever know for sure

What if we never find dark matter?

Could the hunt for the universe's missing matter be the biggest wild goose chase in scientific history?

Math Puzzle: A puzzling picture

Hang a painting poorly in this math puzzle