A brown rat standing on its hind legs.

How Big Rats Took Over North America

Rat bones collected from centuries-old shipwrecks tell a story of ecological competition and swift victory.
The 59th Street electric powerhouse, New York City, 1904.

The Utility of Utilities

Climate activists are no fans of electric utilities. But the alternatives that they often prefer will not deliver infrastructural change at the scale we need.
The Chesapeake 1000 crane at Tradepoint Atlantic in Sparrows Point, Md., on Friday.

A Crane with Cold War CIA Origins Will Help the Baltimore Bridge Cleanup

The Chesapeake 1000, which can lift 1,000 tons, arrived in Baltimore on Friday. Decades ago, it helped build a ship for a CIA mission to recover Soviet secrets.
Death to Beauty book cover, featuring a gloved hand with a syringe.

The Eyes Have It: On Eugene M. Helveston’s “Death to Beauty”

Injecting the world’s deadliest toxin into one’s eye was always going to be a hard sell.
A woman in a dress shows off her drawings.

Pioneering D.C. Artist Inez Demonet Helped WWI Soldiers Put Their Lives Back Together

Meet the Washington artist who pioneered the field of medical illustration — and helped repair the lives of soldiers returning from WWI.
Alexis de Tocqueville.

American Nightmares

Wang Huning and Alexis de Tocqueville’s dark vision of the future.
The 1917 Silent Parade march in New York City protesting antiblack violence.

The Social-gospel Roots of Environmentalism

America's environmental movement has always been moralistic, which has made it bad at weighing tradeoffs. This accounts for its successes and also its failures.
A man stands before four doorways with cryptic letters on them.

Sorting the Self

The self has never been more securely an object of classification than it is today.
Nixon signing the 26th amendment.
partner

America’s Age-Based Laws Are Archaic

Our age-based laws have never made sense. With modern science, they make even less sense.
Colorful, psychedelic illustration of three dolphins in the center with a rainbow in the sky above them and a pool, ocean, palm trees, and sky below them

Tripping on LSD at the Dolphin Research Lab

How a 1960s interspecies communication experiment went haywire.
A photograph of a tree's rings.

The Fellowship of the Tree Rings: A ClioVis Project

The disparate and intriguing connections found in environmental history, one tree ring at a time.
Photo of a blue bin filled with recyclable garbage.

Petrochemical Companies Have Known for 40 Years that Plastics Recycling Wouldn't Work

Despite knowing that plastic recycling wouldn't work, new documents show how petrochemical companies promoted it anyway.
A botanical drawing of a pawpaw on a branch.

Consider the Pawpaw

For some, it is a luscious dessert, a delightful treasure hiding in the woods. For others, it is, to say the least, an acquired taste. It is an enigma.
Coral polyps.
partner

Will the Sun Ever Set on the Colony?

Tracking the history of a curious scientific term.
Mead reading a book, against a psychedelic background.

One of Our Most Respected 20th-Century Scientists Was LSD-Curious. What Happened?

A document in her papers in the Library of Congress sheds new light on postwar research on psychedelics.
Composite image of a girl holding a yellow umbrella in a bright meadow during thunder storm.

The Problem With Blaming Climate Change For Extreme Weather Damage

Why headlines blaming extreme weather on climate change don’t hold up, the peril of catastrophism, and the case that we’re actually safer than ever before.
A young Black girl picking cotton.

Rings of Fire

Arsenic cycles through racism and empire in the Americas.
Photos and newspaper clippings connected with red string

How We Lost Our Minds About UFOs

No, aliens haven’t visited the Earth. Why are so many smart people insisting otherwise?
A scene from "Time Bomb Y2K" depicting a situation room filled with computers.

Heritage 2000

Some years wield such power that you must comply with them.
Green frog with white circles and squiggly lines surrounding it denoting sound

The Many Lives of ‘Sounds of North American Frogs’

This metamorphic record is a teaching tool, a flirtation device, a college radio favorite, a nostalgic object, and more. BOOP!
Psychedelic images coming from a chemical flask.

When America First Dropped Acid

Well before the hippies arrived, LSD and other hallucinogens were poised to enter the American mainstream.
Black doctor tending to a Black patient in a bed with family nearby

How Tens of Thousands of Black U.S. Doctors Simply Vanished

My mother was a beloved doctor. She is also a reminder, to me, of every Black doctor who is not here with us but should be.
Woman and man looking at the fiji mermaid

Nineteenth-Century Clickbait

The exhibition “Mermaids and Monsters” explores hoaxes of yore.
Train cars between drifts of snow up to the top of the engine, with onlookers watching

The Monster Blizzard That Turned Kansas Into a Frozen Wasteland

The 1886 blizzard imperiled settlers and left fields of dead cattle in its wake.
The fur of the woolly dog Mutton

What Happened to the Extinct Woolly Dog?

Researchers studying the 160-year-old fur of a dog named Mutton found that the breed existed for at least 5,000 years before European colonizers eradicated it.
A participant in the Tuskegee syphilis study sits on steps in front of a house in Tuskegee.

The US Once Withheld Syphilis Treatment From Hundreds of Black Men in the Name of Science

The archival trove chronicles the extreme measures administrators took to ensure Black sharecroppers did not receive treatment for the venereal disease.
Photo of "Madness: Race and insanity in a Jim Crow Asylum" with photo of author Antonia Hylton alongside it.

What It Was Like to Be a Black Patient in a Jim Crow Asylum?

In March 1911, the segregated Crownsville asylum opened outside Baltimore, Maryland, admitting only Black patients.
Young boy receiving polio vaccine from doctor

Hesitancy Against Hope: Reactions to the First Polio Vaccine

Hesitancy and opposition to vaccines has existed in the past, and such awareness provides needed context to the COVID-19 pandemic and vaccine within American history.
Pneumatic tube station
partner

Something Old, Something Pneu

Pneumatic tubes offered a leap forward in business and communications, in the office and across the city.
Robert Millikan and Albert Einstein standing side by side.

The Posthumous Trials of Robert A. Millikan

Robert A. Millikan was once a beloved figure in American science. In 2021, his name was removed from buildings and awards. What happened?