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The archive was found by a direct descendant of Herman Matzinger, the doctor who performed McKinley's autopsy.

Newly Discovered Papers From President McKinley’s Assassination Are for Sale

The archive belonged to Herman Matzinger, who performed the autopsy on the 25th president and conducted a bacteriological analysis to rule out the possibility of poison-tipped bullets

Western monarchs prefer to cluster in areas with little to no wind, high humidity, dappled sunlight and easy access to nectar-producing plants.

Monarch Butterflies Wintering in California Are Down 30 Percent From Last Year

The insects’ population is slowly rebounding from a historic low in 2020, but they remain in crisis, having declined by more than 95 percent since the 1980s

The Millenium Camera, set on the path of a hiking trail in Tucson Arizona, is capturing an image over the course of 1,000 years.

Art Meets Science

This Camera Is Taking a 1,000-Year-Long Exposure Photo of Tucson’s Desert Landscape

Jonathon Keats, who devised the plan, hopes the camera will inspire onlookers to contemplate how humanity’s actions affect the environment

The recovered pair of ruby slippers from The Wizard of Oz

Thief Who Stole Dorothy’s Ruby Slippers Avoids Prison

Terry Martin has been sentenced to one year of supervised release for swiping the iconic “Wizard of Oz” shoes from the Judy Garland Museum in 2005

An image from an electron microscope of Treponema pallidum, the bacteria that causes syphilis. In 2022, the number of reported cases of syphilis in the United States was the highest it has been since 1950.

Syphilis Cases in the U.S. Are the Highest Since 1950

Diagnoses of the sexually transmitted infection rose by nearly 80 percent between 2018 and 2022, according to a new report from the CDC

Measuring 40 by 50 inches, The Schoolmistress (circa 1784) had belonged to physician Earl Leroy Wood. Officials returned it to his son, Francis Wood, on January 11.

Stolen by Mobsters 54 Years Ago, This 18th-Century Painting Was Just Returned to Its Rightful Owners

Authorities presented “The Schoolmistress” to 96-year-old Francis Wood, the owner’s son, last month

When researchers reviewed footage of flying insects, they saw that the bugs tilted their backs toward the source of artificial light.

Why Are Flying Insects ‘Attracted’ to Lights? Scientists May Finally Have an Answer

Moths and other insects might turn their backs toward the brightest source of light around—which has historically been the sky—to determine which way is up and which is down, according to a new paper

The Glen Affric tartan, which dates to the 16th century, on top of the newly recreated pattern

You Can Now Wear a Recreation of Scotland’s Oldest Tartan

Fashion designers have created a fabric inspired by the Glen Affric tartan, which was discovered in a peat bog and dates to between 1500 and 1600

A mother "Dorado" octopus, one of the newly announced species, protects her eggs some 3,000 meters under the ocean's surface.

Biologists Discover Four New Octopus Species in the Deep Ocean Off Costa Rica

One species was found brooding eggs near low-temperature hydrothermal vents, a rare sight that could unlock new information on deep-sea cephalopods

Writer N. Scott Momaday at his home in Santa Fe, New Mexico, in 2019

N. Scott Momaday Built the Foundations of Native American Literature

Smithsonian scholars offer their reflections on the author, who died last week at age 89, and his impact on a new generation of Native writers

One possible explanation for the low-frequency noises? Mating black drum fish.

Mysterious Bass Sounds Irking Florida Residents Might Just Be Fish Mating Loudly

The Tampa community raised money to fund an investigation, and now, a local scientist will install underwater microphones to look for the source of the racket

David Hockney painted California (1965) after traveling to Los Angeles for the first time.

One of David Hockney’s First Pool Paintings Is Going on View for the First Time in 40 Years

“California,” which set the stage for the British artist’s later poolside pieces, is expected to sell for more than $20 million

A record number of manatees gather in a warm spring in Florida's Blue Spring State Park on January 21, 2024.

Nearly 1,000 Manatees Converge on Florida State Park to Keep Warm in Record-Breaking Sighting

The park’s naturally heated waters drew unprecedented numbers of the marine mammals, which are especially vulnerable to the cold

Archaeologist and folklorist Billy Mag Fhloinn rediscovered the Altóir na Gréine, or the "Altar of the Sun," in Ireland.

Cool Finds

Everyone Thought This 4,000-Year-Old Tomb Had Been Destroyed. Then, an Archaeologist Found It

Billy Mag Fhloinn located the Altóir na Gréine, thought to have vanished in the 19th century, in southwest Ireland

Spiral galaxy NGC 628, located 32 million light-years away in the constellation Pisces, as captured by the James Webb Space Telescope in near- and mid-infrared light. The red and orange spirals represent gas, while the small blue dots represent stars.

See Dazzling New Images of 19 Spiral Galaxies Captured by the James Webb Space Telescope

These detailed infrared views, which contain millions of stars, will help astronomers better understand star formation and the evolution of spiral galaxies

Researchers studied climate fluctuations in Roman Italy between 200 B.C.E. and 600 C.E.

New Research

Plagues That Ravaged the Roman Empire Were Linked to Periods of Cold Weather

The changing climate may have had ripple effects that made people more susceptible to disease, new research suggests

Illustration of two Caudipteryx dinosaurs drinking from a river

Scientists Build a Robot Dinosaur to Probe the Mystery of Tiny Wings

Robopteryx—a makeshift dinosaur with training wheels—offers clues to the purpose of prehistoric proto-wings, which are too small to have powered flight

An artist's rendition of a LISA spacecraft.

This ‘Game-Changer’ Detector Will Hunt for Giant Ripples in Spacetime

Set to launch in 2035, the European Space Agency’s LISA mission will listen for gravitational waves created by colliding black holes and neutron stars—and some might date nearly to the Big Bang

Protesters throw soup at the Mona Lisa's protective glass covering at the Louvre on January 28.

Climate Activists Throw Soup at the ‘Mona Lisa’

Protected by bulletproof glass, Leonardo da Vinci’s famous masterpiece was not harmed

Portrait of Fräulein Lieser, the 31-by-55-inch work by Gustav Klimt, at a press conference in Vienna

Cool Finds

Lost Gustav Klimt Portrait Rediscovered Nearly 100 Years After It Vanished

“Portrait of Fräulein Lieser,” one of the last works the Austrian artist painted before his death, could sell for over $50 million

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