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The 7.46-carat brown diamond is about the size of a gumdrop.

French Tourist Finds 7.46-Carat Diamond at Arkansas State Park

Julien Navas plans to have the brown gem split into two pieces so he can give half to his fiancée and half to his daughter

The Dana-Farber Cancer Institute

Top Harvard Cancer Institute Will Retract Six Studies and Correct 31 More After Photoshop Claims

British biologist and blogger Sholto David alleged that executives at the Dana-Farber Cancer Institute published papers with manipulated data and images

Firefighters work to control the blaze at the National Art Gallery in Abkhazia on January 21.

Fire Destroys 4,000 Paintings at Abkhazia’s National Art Gallery

The blaze, which spared only some 150 artworks, is a devastating cultural loss for the region

Churchill's custom-made dentures helped him maintain his distinctive speaking style.

Winston Churchill Wore False Teeth to Deliver Historic Wartime Speeches. Now, They’re for Sale

The British prime minister likely acquired the custom gold-mounted dentures around the beginning of World War II

The open canister with the sample collected from the asteroid Bennu inside. Scientists hope the sample can help them better understand planet formation and the origin of life on Earth.

NASA Finally Opens Canister Holding Asteroid Sample—See What They Found

It took several months for the researchers to remove two stuck fasteners, which required them to design new tools

A recently reconstructed brass Roman arm guard, now green and discolored, "gleamed gold" 2,000 years ago.

Experts Solve ‘Ancient Jigsaw Puzzle’ by Reassembling Roman Armor Broken Into 100 Pieces

The fragments of the brass arm guard were discovered at an ancient fort complex in Scotland over a century ago

People with long Covid sit in the audience at a U.S. Senate hearing about the condition on January 18.

Scientists Find Indicators in Blood Linked to Long Covid, Hinting at Future Treatments

One part of the immune system appeared to be overly active in long Covid patients in a small study, a finding researchers hope could help diagnose or treat the condition

A more than four-foot-long medieval sword was found just to the left of the Swedish man's skeleton.

Cool Finds

This Medieval Man Was Buried With a Four-Foot-Long Sword in Sweden

Researchers in Halmstad think he was a high-ranking member of the nobility before his death some 600 years ago

The artifact was found during a two-week dig by a volunteer group in the village of Norton Disney.

Cool Finds

Another Mysterious Roman Dodecahedron Has Been Unearthed in England

More than 100 such ancient artifacts have been found throughout Europe, but nobody knows what they are

An image of an odd radio circle called ORC 1. ORCs can be much wider across than the Milky Way galaxy and are large enough to surround entire galaxies.

Giant, ‘Odd’ Circles of Radio Waves in Space May Finally Have an Explanation

The mystifying orbs could be caused by galactic winds, propelled by a period of rapid star formation and death

Iron Gate Dam in Hornbrook, California, on the Klamath River

The Largest Dam Removal Project in U.S. History Begins Final Stretch, Welcoming Salmon Home

After being impeded by dams for more than a century, the Klamath River will be restored to its historic channel this year

Pablo Picasso's Tête is one of two paintings involved in a $900,000 art heist.

Picasso and Chagall Paintings Found in Antwerp Basement—14 Years After They Vanished

Police conducted a months-long operation to recover the works, which had been stolen from their owner’s home in 2010

This spring, Brood XIII and Brood XIX of periodical cicadas will emerge together for the first time since 1803.

Cicadas Are Coming: Rare ‘Dual Emergence’ Could Bring One Trillion of the Bugs This Year

The 13-year and 17-year broods that will emerge from underground this spring will be appearing together for the first time in 221 years

Turkey’s government hopes the new policies will help protect the 1,500-year-old landmark in Istanbul.

Hagia Sophia Introduces Entry Fee for Foreign Tourists

Worshippers will be able to use a separate entrance to gain free access to the 1,500-year-old landmark in Istanbul

"Accidentally Wes Anderson: The Exhibition" is a new gallery experience dedicated to real-life photography that reflects the director's signature style.

‘Accidentally Wes Anderson’ Photographs Go on View in London

Based on a popular Instagram account, the show is a collection of real-life images that mimic the filmmaker’s aesthetic

Many of the graves found at this ancient Roman burial ground were protected by tile or terra-cotta coverings.

Cool Finds

Archaeologists Unearth Ancient Roman Cemetery Full of Jewelry, Coins and Clothing

Discovered north of Rome, the burial ground lies near what was once an upper-class villa

Japan's X-ray Imaging and Spectroscopy Mission Smart Lander for Investigating Moon (SLIM) launched from Earth on September 7. SLIM took a fuel efficient route to the moon, touching down on the surface over four months later.

Japan Lands Spacecraft on the Moon

After a successful soft landing, the craft’s solar cells weren’t charging and it was running out of power

Italian junior culture minister and art critic Vittorio Sgarbi faces pressure to resign following accusations.

Italian Minister Accused of Owning Stolen 17th-Century Painting

Vittorio Sgarbi is under investigation for laundering an artwork that vanished from a castle over a decade ago

Bottom trawling is a polarizing fishing practice that involves dragging heavy nets and equipment across the seafloor.

Seabed Trawling May Be Spewing Huge Amounts of CO2 Into the Atmosphere

New research suggests the controversial fishing method is also contributing to increased ocean acidification, which can harm marine wildlife

Chicago's Field Museum announced its decision to cover certain display cases several days before new federal regulations went into effect.

Field Museum Covers Native American Displays to Comply With New Regulations

The federal rules require museums to obtain consent from tribal leaders before displaying or researching cultural heritage items

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