Small differences account for a shooter’s consistency.

The Math Behind the Perfect Free Throw

A basketball computer program simulates millions of trajectories in search of the ideal shot

How to Calculate the Danger of a Toxic Chemical to the Public

The risk of any toxin depends on the dose, how it spreads, and how it enters the body

How It All Began: A Colleague Reflects On the Remarkable Life of Stephen Hawking

The physicist probed the mysteries of black holes, expanded our understanding of the universe and captured the world’s imagination, says Martin Rees

The Proliferation of Happiness

A professor of consumer culture tracks the history of positive psychology

An artist's interpretation of two giant pterosaurs in the Late Cretaceous.

New Research

What Doomed the Pterosaurs?

Killed off in their prime, the leathery fliers may have been living too large for their own good

At the time of capture, the Smithsonian's coelacanth specimen weighed about 160 pounds and measured a little less than five and a half feet long.

How the Smithsonian’s Coelacanth Lost Its Brain and Got It Back Again

This year marks the 80th anniversary of the discovery of a fish believed to have gone the way of the dinosaurs 70 million years ago

Human evolution is ongoing, and what we eat is a crucial part of the puzzle.

How Cheese, Wheat and Alcohol Shaped Human Evolution

Over time, diet causes dramatic changes to our anatomy, immune systems and maybe skin color

Could Lab-Bred Super Coral Save Our Reefs?

Scientists are exploring a bold new plan that could help protect the world’s coral reefs. Using selective breeding, they aim to produce a new strain

Lioness Underestimates the Strength of an Impala

A solitary lioness in her new home of Akagera, Rwanda, is tracking a herd of impala. Two problems: The impala here are stronger than the ones back home

Future of Conservation

Inside the Colorado Vault That Keeps Your Favorite Foods From Going Extinct

From heirloom potatoes to honeybee sperm, this collection works to preserve our invaluable agricultural diversity

This Crab Doesn’t Take Kindly to Home Intruders

The crown-of-thorns starfish eats coral reefs; coral reefs happen to be the home of the guard crab

An urban coyote makes itself at home in a vacant lot on Chicago's near North Side.

New Research

Foxes and Coyotes are Natural Enemies. Or Are They?

Urban environments change the behavior of predator species—and that might have big implications for humans

The trepanated skull of a Neolithic woman. The fact that the hole is rounded off by ingrowth of new bone suggests that the patient survived the operation.

No, Getting a Hole Drilled in Your Head Was Never a Migraine Cure

The ancient and controversial procedure was used for a slew of reasons, but to ‘let the headache out’ was not one of them

The handbones seen in the whale model in the center of this image tell the curious story of how whales went from land to water.

Ask Smithsonian

What’s a “Missing Link”?

While some still use the term, experts abhor it because it implies that life is a linear hierarchy

Did a falling apple really influence Newtonian physics?

Sometimes, a Scientific “Eureka!” Moment Really Does Change the World

Your plastic credit card, microwaveable popcorn and erection enhancers all owe to a fortuitous moment of connection

Manta Rays Use Tiny Fish to Help Them Stay Clean

Wrasse perform a vital cleaning function for other fish, by ridding their bodies of dead cells and parasites

A large female Greenland shark observed near the community of Arctic Bay, Nunavut.

New Research

The World’s Most Ancient, Elusive Sharks Were Finally Caught on Video

Greenland sharks, which can live more than 400 years, reveal how little we know about life in the coldest oceans

Kinorhynchs (aka mud dragons) range in size from about 0.13 to one millimeter. Like other meiofauna species, they are integral parts of marine food chains in sediments throughout the world.

King of the Mud Dragons

Robert Higgins has spent his career dredging out tiny creatures from dirt and obscurity

Margaret Hamilton, Katherine Johnson, Sally Ride, Nancy Grace Roman, Mae Jemison

Women Who Shape History: Education Resources

For use in the classroom or your community, a list of lesson plans and other teaching materials on women’s history in America

An endocast revealing the brain of an Iguanodon, an herbivorous dinosaur of the early Cretaceous period. This was the first fossilized dinosaur brain found by modern scientists, announced in 2016.

Women Who Shaped History

The Woman Who Shaped the Study of Fossil Brains

By drawing out hidden connections, Tilly Edinger joined the fields of geology and neurology

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