Articles

Tooth-mounted sensor

This Tiny Tooth Sensor Could Keep Track of the Food You Eat

The tooth-mounted device can recognize glucose, salt and alcohol, and researchers hope it can one day detect much more

Would you be – or feel – safer if one of these people were a robot?

Would You Trust Drone Software to Pilot Your Flight?

Drones have already flown more hours than humans have. Now companies are looking to apply that data to commercial flight

Richard Branson Speaks on Plan for Space Tourism

Billionaire Richard Branson has set up Virgin Galactic as part of his dream to conquer the final frontier

Powerhouse's strict definition of energy-positive takes every stage of a building's lifecycle into account, from the construction and transport of materials to eventual demolition.

In Norway, an Ambitious New Standard for Green Building Is Catching On

A coalition called Powerhouse is designing buildings that produce more energy than they use in their entire lifecycle

A Tyrannosaurus Rex head on display in Beijing. The country's fossil boom has resulted in a bevy of options for tourists seeking pterosaurs, feathered dinosaurs and early bird specimens.

Ten Chinese Museums Where You Can See a Dinosaur Fossil Up Close

The country's dino explosion has created a mecca for tourists intent on catching a glimpse of feathered dinos and other prehistoric wonders

Pauline Esther "Popo" Phillips and her twin sister Esther Pauline "Eppie" competed for influence as the hugely successful "Dear Abby" and "Ask Ann Landers" syndicated columnists.

What Makes the Advice Column Uniquely American

In a new book, author Jessica Weisberg dives into the fascinating history of the advice industry

Liu Cun Yu, the director of the Beipiao Pterosaur Museum, poses in front of a full-scale model of a Moganopterus zhuiana, a species named after his wife.

The Great Chinese Dinosaur Boom

A gold rush of fossil-finding is turning China into the new epicenter of paleontology

Formerly an arcade and office building, dating to 1917, the structure underwent a city-led restoration and reopened last year as the Hotel Manzana Kempinski.

Tony Perrottet's Cuba

The Man Who Saved Havana

As its greatest old buildings were falling down, a fearless historian named Eusebio Leal remade the city into a stunning world destination

A U-Boat Class II submarine (this one depicted, UB-35, was the same class as UB-29) prowls the open seas.

The Hunt for the Notorious U-Boat UB-29

A wreck-diving archaeologist and his quest to discover a missing submarine

Years after she captured this tender, reflective image of the First Lady, photographer Diana Walker sent a print of the photograph to George H. W. Bush. “It does seem like so long ago, but seeing this image brings everything back into focus,” President Bush wrote in response: “The photo now hangs in my office in Maine, and I enjoy it every day.”

Smithsonian Curators Reflect on How Barbara Bush Will Be Remembered

As both the First Lady and the mother of a President, Mrs. Bush leaves a legacy of a national grandmother with an iron backbone

What's the Difference Between Moths and Butterflies and More Questions From Our Readers

You asked, we answered

The Carolina parakeet, so named for the region where it was discovered, was known for its “disagreeable screams” and great beauty.

Why Did the Carolina Parakeet Go Extinct?

It hasn't been seen for a century. But will the bird species ever fly again?

Panama Canal construction in 1913 showing workers drilling holes for dynamite in bedrock, as they cut through the mountains of the Isthmus. Steam shovels in the background move the rubble to railroad cars.

How the Panama Canal Took a Huge Toll On the Contract Workers Who Built It

The project was a tremendous American achievement, but the health costs to the mostly Caribbean contract workers were staggering

This Female Gladiator Captive Had to Fight for Her Life

In 2nd century AD, Celtic warrior Ardala is taken to Rome and tossed in a dark dungeon while her captors decide what to do with her

These unusual cats may have some advantages for allergic owners, but to call them hypoallergenic would be a stretch.

There's No Such Thing as a Hypoallergenic Cat

With its short tight curl, many claim that the Cornish Rex is proof that cats can be allergen-free. Nope

Albert and Elsa Einstein in Japan

When Albert Einstein Visited Japan

As he traveled through Asia, including a trip to Palestine, the brilliant scientist discovered much he didn’t understand

The tiny sensor

This Implantable Chip Could Monitor Alcohol Intake

Engineers have developed a tiny sensor that could potentially replace regular Breathalyzer or blood tests for patients in rehabilitation programs

Civil rights leader Rev. Ralph Abernathy, in short sleeves, leads the Poor People's March to the edge of the grounds of the U.S. Capitol building in Washington, June 24, 1968. Abernathy and his followers from Resurrection City marched to the Agriculture Department and then to the Capitol.

Remembering Resurrection City and the Poor People's Campaign of 1968

Lenneal Henderson and thousands of other protesters occupied the National Mall for 42 days during the landmark civil rights protest

Nizina Glacier became more accessible to paddlers around 2000, when melting ice formed a lake on which float-planes could land.

A Daring Journey Into the Big Unknown of America's Largest National Park

If dangling from a rope inside a melting glacier is your idea of a vacation, then come with us to Alaska's Wrangell-St. Elias

A Brief History of the Stoplight

How a bright idea shaped our cities and gave the go-ahead to our love affair with the car

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