Scientific American

Person turns on a musical player, placing a needle on a vinyl record which has the symbol for the Greek letter Pi on it and the numbers of Pi on the record face

MathematicsMarch 14, 2023

If the mathematical constant pi was a song, what would it sound like?

Every year on Pi Day, we have a reason to celebrate one of math’s most famous symbols. But this year we speak to someone who has captured it in song.

Jeffery DelViscio

A blackboard shows the digits of pi drawn out in chalk.

Pi DayMarch 13, 2026

Mathematicians find one pi formula to rule them all

Lyndie Chiou

Cartoon renderings of the mathematical symbol pi with pizza toppings on them

Pi DayMarch 14, 2026

Math Puzzle: Pi Day mishap

Jack Murtagh

A quarter balances on its edge, tilted forward as if it's about to drop.

Pi DayMarch 12, 2026

How to find pi in randomness all around you

Emma R. Hasson

DNAMarch 14, 2026

Identical twins on trial: can DNA testing tell them apart?

Rachel Fieldhouse, Nature magazine

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Materials ScienceMarch 14, 2026

Fresh claim of making elusive ‘hexagonal’ diamond is the strongest yet

Mark Peplow, Nature magazine

EarthMarch 13, 2026

Earth’s spin is slowing at an unprecedented rate, thanks to climate change

Claire Cameron

A view of the International Space Station against the blackness of space.

Space & PhysicsMarch 13, 2026

24 mice launched to orbit in 2023. What happened to their bodies could help humans better survive in space

Jackie Flynn Mogensen

Still image from animated movie Hoppers, showing two scientists displaying the Hopper robot

CultureMarch 13, 2026

Hoppers' beaver expert shares the wild facts of these dam builders

Brianne Kane

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March 2026 Issue

Woman walking through a city scene wearing AI-enabled devices including glasses, an earbud, and a necklace pendant.

Artificial Intelligence

Inside the new AI world order: A special report

Eric Sullivan

Illustration of AI in clinical care, showing tech-driven clipboards

Artificial Intelligence

AI enters the exam room

Hilke Schellmann

Illustration of a person in a hoodie, covering their face, working on a computer ominously

Artificial Intelligence

A deepfake can ruin you before breakfast

Eric Sullivan

Grid of six images. Each panel holds a red glowing dot in a black field.

Astronomy

Exotic black hole stars could explain the mystery of Little Red Dots

Rebecca Boyle

View through a window into a living room. Three people are sitting on a couch in an animated conversation, with hands intertwined

Psychology

The truth about polyamory

Rebecca J. Lester

Paleontology

Mountain photographer stumbles on one of the largest ever collections of Triassic dinosaur prints

Humberto Basilio

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Games

A robot hand reaches toward bubbles with letters in them

Spellements

Create as many words as you can!

Illustration of a hand and multiple numbers against a purple background.

Math Puzzles

Stretch your math muscles with these puzzles.

A robot hand unleashes a swirl of puzzle pieces, crosswords, and circles with numbers and letters

All Games

Science inspired games, puzzles and quizzes

Special Edition

A number of suns floating with Red Blood cells

Health

Can sunlight cure disease?

Rowan Jacobsen

Public Health

Can peanut allergies be cured?

Maryn McKenna

Illustration of a Vitamin D pill bottle with yellow balloons flying out of it, then being popped by a pin in a hand.

Public Health

How much vitamin D do you need to stay healthy?

Christie Aschwanden

Illustration of a row of human figures (minimialist in style—just outlines, even stick figures), each in a different rainbow color, with a row of vaccines (eg needle plus vial) above the row of humans.

Medicine

Personalized mRNA vaccines will revolutionize cancer treatment—if funding cuts don’t doom them

Rowan Moore Gerety

Illustration of a face, with an enlarged nasal cavity. Inside the nasal cavity are three health care professionals with nasal spray bottles and colorful patterns

Pharmaceuticals

New nasal vaccines offer better protection from COVID and flu—no needle needed

Stephani Sutherland

Illustration of a doctor in a white lab coat, using a bow and arrow.

Pharmaceuticals

These cancers were beyond treatment—but might not be anymore

Jyoti Madhusoodanan

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Podcasts

Illustration of Robert F. Kennedy Jr., US Secretary of Health and Human Services

March 13, 2026

The dark roots of RFK, Jr.’s public health ideology

Kendra Pierre-Louis, Dan Vergano, Sushmita Pathak, Jeffery DelViscio, Alex Sugiura

An image of a man standing outside of a castle with his arms on his waist

PsychologyMarch 11, 2026

How The Traitors reveals the psychology behind lying

Kendra Pierre-Louis, Jackie Flynn Mogensen, Fonda Mwangi, Alex Sugiura

Conceptual image of an infectious disease spreading

Public HealthMarch 9, 2026

U.S. measles cases surge, AI powers wars, global warming is in a hurry

Kendra Pierre-Louis, Sushmita Pathak, Joseph Howlett, Alex Sugiura

An illustration of a woman and a man with a purple background and book cover between them

ConsciousnessMarch 6, 2026

Michael Pollan on why consciousness is a mystery—and why protecting it matters

Brianne Kane, Fonda Mwangi, Alex Sugiura, Kylie Murphy, Jeffery DelViscio, Kendra Pierre-Louis

Illustration of icons of artificial intelligence apps on a smartphone

Artificial IntelligenceMarch 4, 2026

The BBC tech journalist who achieved hot dog eating glory—by hacking AI

Kendra Pierre-Louis, Sushmita Pathak, Alex Sugiura

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Discussions

What fun fact or other tidbit have you learned about beavers?

1View the Discussion

What is the nerdiest or most unusual way you or someone you know has celebrated Pi Day?

8View the Discussion

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Popular Stories

MathMarch 13, 2026

Mathematicians find one pi formula to rule them all

A mixture of AI and algorithms uncovered a hidden structure spanning 2,000 years of equations for pi

Lyndie Chiou

Several bright dots are shown moving together across a head-on view of a galaxy.

Milky WayMarch 12, 2026

The sun and thousands of its twins migrated across the Milky Way just in time

The sun rode a massive galactic migration wave to the Milky Way’s suburbs

Jacek Krywko

Calendar page with phrase Friday The 13th, closeup.

MathematicsMarch 13, 2026

Why Friday the 13th is a mathematical inevitability

No bad luck here—just lots of fascinating math that explains why the 13th of a month so often falls on a Friday

Manon Bischoff

A general view of Tehran with smoke visible in the distance after explosions were reported in the city.

Nuclear weaponsMarch 11, 2026

Iran was nowhere close to a nuclear bomb, experts say

Although President Trump has claimed Iran was weeks away from developing a nuclear weapon, much more work was needed for the country to do so

Dan Vergano

Ryan Gosling wears a blue striped sweater and holds his hands up in front of his face as he explains something. He sits in front of the Mission Control dashboard at NASA's Jet Propulsion Laboratory.

Space ExplorationMarch 12, 2026

Ryan Gosling says Project Hail Mary is ‘a reminder of what we’re capable of’

Ryan Gosling plays a science teacher turned (reluctant) astronaut in the upcoming film adaptation of Project Hail Mary, a science fiction novel by author Andy Weir

Brianne Kane

EarthMarch 13, 2026

Earth’s spin is slowing at an unprecedented rate, thanks to climate change

Rising sea levels are slowing Earth’s rotation, lengthening days by 1.33 milliseconds per century

Claire Cameron

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Scientific American

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March 2026 Issue

Games

Spellements

Math Puzzles

All Games

Special Edition

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Podcasts

Discussions

Popular Stories