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Redwood forest in California, similar to some of the terrain Josiah Gregg and his team crossed at the height of the California Gold Rush.

The Ill-Fated Expedition of a 19th-Century Scientist to Explore the California Wilderness

Even facing exposure and starvation, Josiah Gregg insisted on stopping to take measurements and observations, much to his companions’ distress

Although the asteroid strike that created Chicxulub crater in modern-day Mexico dramatically affected life on Earth, the fiery crash isn't the whole story of the fate of the dinosaurs.

We Still Don’t Know Why the Reign of the Dinosaurs Ended

The asteroid strike on the Yucatán Peninsula 66 million years ago is only part of the story

Beneath the Space Window at the National Cathedral in Washington, D.C., where a seven-gram sample of moon rock is incorporated into the design, a sold-out crowd gathered this week for the celebration of the 50th Anniversary of Apollo 8.

NASA Won’t Be Going ‘Back’ to the Moon—It Wants to Go Beyond It

At a 50th-anniversary event for Apollo 8, NASA’s Jim Bridenstine envisioned the moon’s potential for future space exploration

Record companies released stereo demonstration albums that showcased how sound could move from left to right, creating a sense of movement.

How Savvy Advertising Helped Make Stereo Technology Mainstream

Stereo demonstrations and colorful ads sold customers on the two-channel sound technology when it was introduced 60 years ago

In June of 1878, just a few years after he was acquitted for murder, Eadweard Muybridge made history at a racetrack in Palo Alto, California.

How a 19th-Century Photographer Made the First ‘GIF’ of a Galloping Horse

Eadweard Muybridge photographed a horse in different stages of its gallop, a new Smithsonian podcast documents the groundbreaking feat

Clean and compelling, Spacewar! pitted two player-controlled ships against one another and rewarded superior strategists. The PDP-1 lacked the memory to accommodate AI opponents.

How the First Popular Video Game Kicked Off Generations of Virtual Adventure

A simple contest of sci-fi strategy, ‘Spacewar!’ ushered in what is now a 140 billion dollar industry

The Smithsonian's popular National Museum of African and American History and Culture announced a new ticketing plan. It's free, and sometimes you won't need a ticket, but it's complicated.

Tips for Getting Tickets to NMAAHC and When They Are Not Necessary

The Smithsonian’s National Museum of African American History and Culture announces no-ticket days and afternoons

A young caribou gazes out from under an adults head.

A Photographer’s Quest to Document the Last of the Rainforest Caribou

In a new book, photographer David Moskowitz turns his lens on the story of a rapidly declining species and habitat

Signals from other workers can tell ants when and where to fan out and search for food.

Ant Colonies Retain Memories That Outlast the Lifespans of Individuals

An ant colony can thrive for decades, changing its behavior based on past events even as individual ants die off every year or so

The card game Spot It! has become one of the most popular family games in the country, but the secret to how the game works has its roots in the logic puzzles of 19th century mathematicians.

Education During Coronavirus

The Mind-Bending Math Behind Spot It!, the Beloved Family Card Game

The simple matching game has some deceptively complex mathematics behind the scenes

Homo neanderthalensis, the earlier relatives of Homo sapiens, also evolved to shed most of their body hair.

Why Did Humans Lose Their Fur?

We are the naked apes of the world, having shed most of our body hair long ago

The Ten Best Board Games of 2018

Go analog at your next party with one of these new classics

“Everyone involved accomplished many, many firsts with that flight,” says Smithsonian curator Teasel Muir-Harmony. of NASA's near-perfect mission, (above: Apollo 8 command module).

How Apollo 8 ‘Saved 1968’

The unforgettable, 99.9 percent perfect, December moon mission marked the end of a tumultuous year

The Cruces de Molinos site in the Chilean Andes contains rock art depictions of llama caravans, possibly marking a ceremonial site for caravaners passing through the mountains.

Thousand-Year-Old Rock Art Likely Served as a Gathering Point for Llama Caravans Crossing the Andes

Trade caravans, whether supported by mules, camels or llamas, have helped archaeologists piece together the past in many corners of the world

Google's new artificial intelligence program, AlphaZero, taught itself to play chess, shogi, and Go in a matter of hours, and outperforms the top-ranking AIs in the gameplay arena.

Google’s New AI Is a Master of Games, but How Does It Compare to the Human Mind?

After building AlphaGo to beat the world’s best Go players, Google DeepMind built AlphaZero to take on the world’s best machine players

The New York Botanical Garden in New York City is just one of many places across the country to see holiday-themed model train shows.

Eight Dazzling Toy Train Displays to Get You in the Holiday Spirit

From Dallas to New York City, these mighty miniatures will delight even the biggest Scrooge

The Ten Best Children’s Books of 2018

Our picks deliver feminist history, folklore reimagined and an adventurous romp through awe-inspiring destinations

An artist's rendering of the small rover that will be deployed on the far side of the Moon as part of the Chang'e-4 mission.

China Launches First Mission to Land on the Far Side of the Moon

Not glimpsed by humanity until 1959, the surface of the far side of the Moon has never been visited before

An aerial shot of North Sentinel Island

Inside the Story of John Allen Chau’s Ill-Fated Trip to a Remote Island

Questions abound about the ethics of the missionary’s trip and what will happen next

A police officer directs traffic in London in the 1890s.

When the Street Light First Came to London, Disaster Ensued

First introduced in 1868, the device was meant to prevent accidents—but then it caused one

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