Technology

Why Short Naps Are Good for You

A quick nap can boost your memory, your mood and even your creativity

Stunning Comet Spiral Offers Glimpse of Icy Snowball at...

Comet 12P/Pons-Brooks is hiding a strange spiral in its icy heart—and it may tel...

Readers Respond to the December 2023 Issue

Letters to the editors for the December 2023 issue of Scientific American

Evidence Does Not Support the Use of the Death Penalty

Capital punishment must come to an end. It does not deter crime, is not humane a...

Wegovy Is First Weight-Loss Drug Approved for Heart Dis...

The FDA recently approved semaglutide (Wegovy) for preventing serious heart cond...

61 Unexpected PFAS ‘Forever Chemicals’ Found in Food Pa...

A global study identified 61 PFAS chemicals in food packaging that are not autho...

The Dangers of Fast Science

Scientific research needs to slow down, not speed up, to produce trustworthy res...

How to Make Alien Ice

Tricks to produce strange “ordered” ice could reveal new ice forms

Lava-Lit Lenticular Cloud Crowns Volcano in Spectacular...

These bizarre-looking clouds form in stable atmospheric eddies

New Insights from AI, Strange Metals and Parents of LGB...

AI has deciphered ancient texts, learned new math and provided new ideas about h...

Cannibal Cells Inspire Cancer Treatment Improvement

Giving cells an appetite for cancer could enhance treatments

Partial Heart Transplants Grow with Their Young Recipients

A heart valve transplant could save the life of a baby—or two

‘Interstellar’ Meteor Signal May Have Been a Truck

New analyses cast doubt on claims that a meteor witnessed over the South Pacific...

Collaborating in Person May Spark More Innovative Research

Bringing people together virtually doesn’t seem to boost disruptive research

Simple Resistance Exercises Improve Overall Health and ...

Weight training turns out to be as important as aerobic activity for warding off...

High-Profile Geoengineering Experiment Shuts Down

A beleaguered solar geoengineering project failed to conduct field tests because...

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