Technology

Why a Little Heartbeat Irregularity Can Be Good for You

Why a Little Heartbeat Irregularity Can Be Good for You

SIN Nov 18, 2025 0 32

Milliseconds of variability, now detected by fitness watches, can improve well-b...

Science Crossword: A Destructive Fix

Science Crossword: A Destructive Fix

SIN Nov 18, 2025 0 15

Play this crossword inspired by the December 2025 issue of Scientific American

NASA’s Mars Sample Return Mission in Jeopardy as U.S. Considers Abandoning Retrieval

NASA’s Mars Sample Return Mission in Jeopardy as U.S. C...

SIN Nov 18, 2025 0 20

NASA spent years and billions of dollars collecting Martian samples to bring hom...

We Need Laws to Stop AI-Generated Deepfakes

We Need Laws to Stop AI-Generated Deepfakes

SIN Nov 18, 2025 0 24

When anyone can forge reality, society can’t self-govern. Borrowing Denmark’s ap...

Science Bleeds When It’s Cut

Science Bleeds When It’s Cut

SIN Nov 18, 2025 0 17

As funding dries up, researchers face setbacks that threaten innovation and publ...

New Pill Can Save Moms from Postpartum Depression within Days

New Pill Can Save Moms from Postpartum Depression withi...

SIN Nov 18, 2025 0 20

Deep emotional distress after birth kills many mothers. A new kind of drug offer...

Math Puzzle: Falling Through

Math Puzzle: Falling Through

SIN Nov 18, 2025 0 18

Solve a holey shape conundrum in this math puzzle

Readers Respond to the July/August 2025 Issue

Readers Respond to the July/August 2025 Issue

SIN Nov 18, 2025 0 38

Letters to the editors for the July/August Issue 2025 issue of Scientific American

How Forbes Sent E-mails to the Future—And What Happened 20 Years Later

How Forbes Sent E-mails to the Future—And What Happened...

SIN Nov 18, 2025 0 27

Twenty years ago Forbes.com sent hundreds of thousands of messages to the future...

Does Information Ever Really Disappear? Physics Has an Answer

Does Information Ever Really Disappear? Physics Has an ...

SIN Nov 18, 2025 0 27

Black holes and quantum mechanics present a paradox about the preservation of in...

How to Send a Message to Future Civilizations

How to Send a Message to Future Civilizations

SIN Nov 18, 2025 0 25

When written knowledge is more ephemeral than ever, how can we pass on what’s im...

Can a Buried Time Capsule Beat Earth’s Geology and Deep Time?

Can a Buried Time Capsule Beat Earth’s Geology and Deep...

SIN Nov 18, 2025 0 29

A ridiculous but instructive thought experiment involving deep time, plate tecto...

Nuclear-Waste Arks Are a Bold Experiment in Protecting Future Generations

Nuclear-Waste Arks Are a Bold Experiment in Protecting ...

SIN Nov 18, 2025 0 38

Designing nuclear-waste repositories is part engineering, part anthropology—and ...

The Leonid Meteor Shower Is Peaking—Here’s How to Watch This Fireball-Filled Event

The Leonid Meteor Shower Is Peaking—Here’s How to Watch...

SIN Nov 18, 2025 0 30

A thin crescent moon and dark skies could give watchers a clear view of this ast...

How Technology and Friendship Preserved a 20-Year E-mail Time Capsule

How Technology and Friendship Preserved a 20-Year E-mai...

SIN Nov 17, 2025 0 23

Scientific American’s editor in chief David M. Ewalt reflects on a 20-year exper...

How Influential People Map Their Social World

How Influential People Map Their Social World

SIN Nov 17, 2025 0 26

The same brain areas that help us map physical space help us chart social connec...

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