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Roughly 4 percent of adults in the United States have chronic nightmares.

The Future of Mental Health

Can a Musical Reminder Banish Bad Dreams?

Scientists hope that playing certain chords while sleeping can trigger positive memories and prevent nightmares

Blue jeans gained popularity in the late 19th-century American West due to their durability.

Cache of 19th-Century Blue Jeans Discovered in Abandoned Arizona Mineshaft

The seven pairs of pants open a portal into life in the Castle Dome mining district

"Sidedoor" host Lizzie Peabody creaks across museum attic floorboards and sneaks into an old house in the woods (above: What lurks inside the Sellman House at the Smithsonian Environmental Research Center?) to investigate the spooky stories that only a few dare to tell.

The Ghosts Who Haunt the Smithsonian

Mysterious tales head up podcast offerings for late October and November

An artistic rendering of a multituberculate mother with her litter of offspring.

Just Like Us, Jurassic Mammals Cared for Their Young

Clues from bones reveal multituberculates looked after their offspring for lengthy periods during the Age of Dinosaurs

A scary figure emerges in a doorway at Dystopia Haunted House.

Can Experiencing Horror Help Your Brain?

The “recreational fear” that arises from visiting haunted houses and watching scary movies may provide psychological benefits

Chapel of the Souls in Porto, Portugal

Coastal Cities of Europe

To Get to Know Portugal, Explore Its Azulejo Tilework

Since the 13th century, artists have been reinventing the art form that covers churches, palaces and train stations

T.H. Matteson, Examination of a Witch, 1853

A Brief History of the Salem Witch Trials

One town’s strange journey from paranoia to pardon

Put together, recent research on Tutankhamun—from new interpretations of X-rays and CT scans to studies of his footwear and mortuary temple—presents quite a different portrait from what is frequently seen in popular media.

Reimagining Tutankhamun as a Warrior

Recent research contradicts the image of the Egyptian boy-king as a frail, sickly pharaoh

Emmett Lewis' ancestor Cudjo Lewis was one of the last survivors of the Clotilda.

These Descendants Never Forgot the Story of the Last American Slave Ship

A new Netflix documentary follows the families of the “Clotilda” captives as they grapple with how their past informs their future

Prickly pear fruit growing on cactus

Is There a Market for Edible Cactus in the United States?

Often treated as a weed, the versatile prickly pear cactus could be the next big specialty crop

A mountain lion, P-22, known to live in the Los Angeles area

L.A.’s Cougars Were Driven to Extremes by Wildfire

With less suitable habitat, the big cats traveled further and crossed dangerous roads more often

Shark skin is made of tiny, stiff segments of overlapping, textured dentin and enamel. Shark skin’s distinctive texture gives sharks greater efficiency moving through the water.

Shark Skin-Inspired Materials Have a Long Way to Go Before They Work Like the Real Thing

The predator’s distinctive texture is the envy of engineers trying to maximize hydrodynamics

The Misses Porter (as they were sometimes called) arguably created the modern historical novel, weaving fascinating, romantic tales out of facts and events culled from history books.

The Forgotten Sisters Who Pioneered the Historical Novel

Jane and Anna Maria Porter ruled Britain’s literary scene—until male imitators wrote them out of the story

Deinocheirus walks across a landscape dotted with ponds. Fossils found recently in eastern North America provide evidence that similar dinosaurs lived on our continent.

Giant Ostrich-Like Dinosaurs Once Roamed North America

Rare finds in Mississippi paint a picture of these creatures’ lost world

A stained-glass window depicting Empress Matilda's voyage from England to Normandy

Based on a True Story

The Medieval Power Struggle That Inspired HBO’s ‘House of the Dragon’

The “Game of Thrones” spinoff takes its cue from the Anarchy, a civil war that saw Empress Matilda and Stephen of Blois vying for the English crown

A yoga instructor practices a breathing exercise.

The Future of Mental Health

How Does Breathing Affect Your Brain?

Neuroscientist are piecing together how the rhythm of respiration influences everything from cognition to emotion

Divers examine an iron anchor believed to come from the British antislavery patrol ship H.M.S. Nimble, which ran afoul of the Florida Keys' sharp reefs in 1827 while chasing the illegal Spanish slaver the Guerrero.

What a Spanish Shipwreck Reveals About the Final Years of the Slave Trade

Forty-one of the 561 enslaved Africans on board the “Guerrero” died when the illegal slave ship sank off the Florida Keys in 1827

“Ulitsa Sezam” sought to teach young viewers the skills they would need to thrive in a nascent market economy, with Muppets serving as fluffy mascots of democratic values.

When the Muppets Moved to Moscow

A new book details the tangled tale of “Ulitsa Sezam,” a “Sesame Street” spinoff that aired until visions of Russia’s democratic future faltered

The Apollo 11 Command Module Columbia, the only part of the spacecraft from the first moon-landing expedition to return to Earth, is on view with the space suit that Neil Armstrong wore when he walked on the moon in July 1969.

A New Look for the National Air and Space Museum

The Incredible Technology That Made Humanity’s Moon Dreams a Reality

A new, completely reimagined exhibition goes beyond the Cold War narrative to explore the full story of lunar landings

The first juvenile collector urchin (Tripneustes gratilla) raised from a cryopreserved embryo.

Planet Positive

A Graduate Student’s Research Could Help Stop the Spread of Invasive Seaweed in Hawai’i

For the first time, using cryopreservation to freeze sea urchin embryos may help restore coral reefs

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