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To create mouse-rat "chimeras," researchers injected rat stem cells into mouse embryos that lacked some genes for brain development.

Researchers Breed Mice With Hybrid Brains Containing Cells From Rats

In one experiment, rat neurons helped mice restore their senses of smell—the first time any animal has perceived the world through the sensory hardware of another species

Museum officials say Leonardo's painting draws 80 percent of the Louvre's nine million annual visitors.

The Louvre Is Thinking About Moving the 'Mona Lisa' to Its Own Room Underground

Officials hope to improve visitors' experience in the Paris museum's Salle des États

Researchers discovered broken pottery in a medieval ditch beneath a bridge in the city's center.

Cool Finds

Archaeologists Discover Medieval Artifacts Ahead of Bridge Demolition in England

Found during a construction project near the railway station in York, the trove includes pottery and bones

A coal-fired power plant in Germany, which derives about 27 percent of its national electricity from coal.

Seven Major Nations Agree to Phase Out Coal by 2035, Though Vague Language Leaves Wiggle Room

The wealthy, industrialized countries set a flexible schedule to cut one of the dirtiest fossil fuels from their economies

Previous research suggested that anger can increase people's risk of heart attacks. In the new study, researchers found that part of the reason why could be that anger briefly reduces blood vessels' ability to widen.

Can Anger Affect Your Heart Health? Scientists Find the Strong Emotion Impacts How Blood Vessels Function

The results could even help explain why stress from anger may trigger a heart attack

While penguins have feathers that shield their skin from radiation, their eyes remain unprotected. Increased ultraviolet radiation exposure could also have harmful effects for Antarctic organisms like seals, krill and plankton, per a new paper.

Antarctica's Ozone Hole Is Persisting Later Into the Year, Raising Concerns for Wildlife

As a result of the longer-lasting hole, harmful ultraviolet radiation is reaching Earth during a time when young penguins and seals are more vulnerable, scientists say

On April 25, protesters demonstrate against Venice's new day-tripper tax.

Venice's First-of-Its-Kind 'Day-Tripper Tax' Sparks Outrage

Protestors say the entry fee is an ineffective solution to the city’s overtourism challenges

Astronauts could run around the interior walls of cylindrical homes on the moon.

Could Running Around a 'Wall of Death' Help Astronauts Stay in Shape on the Moon?

Short sprints on these cylindrical structures, long used by daredevil motorcycle riders, might promote muscle mass and bone density in low-gravity conditions

The Greek philosopher Plato was a student of Socrates and a teacher of Aristotle.

This Newly Deciphered Papyrus Scroll Reveals the Location of Plato's Grave

The mysterious site is mentioned in a text buried by Mount Vesuvius' eruption 2,000 years ago

One of the loose zebras runs through a pasture before being recaptured. The zebra that is still on the loose was spotted on Monday.

Four Zebras Escape From Trailer on Washington State Highway—One Is Still on the Loose

The animals ran around residential areas before community members—including a former rodeo bullfighter—helped corral three of them

John Lennon plays the rediscovered 12-string Framus Hootenanny guitar.

Cool Finds

Man Finds John Lennon's Forgotten Guitar in His Father's Attic

The 12-string instrument, which is going to auction in late May, spent 50 years hidden away in the British countryside

A close-up of the "mane" of the Horsehead Nebula, located some 1,300 light-years from Earth. This view was captured by the James Webb Space Telescope's Mid-Infrared Instrument.

See New Images of the Horsehead Nebula, Captured in Striking Detail by the James Webb Telescope

The beautiful infrared imagery features one of the best known locations in space to study the evolution of stars and interstellar matter

The Eta Aquarids appear to originate from a bright star in the constellation Aquarius.

How to Watch the Dazzling Eta Aquarid Meteor Shower, Bringing an Unusual 'Outburst' to Skies This Weekend

This year's spectacle will be more impressive than usual, as the Earth passes through a concentrated clump of 3,000-year-old comet debris

The Chau Chak Wing Museum at the University of Sydney is home to Australia's largest collection of ancient Egyptian artifacts.

Australian Museum Removes Mummified Body Parts From Display

"We have become so accustomed to seeing them on show that we often forget they once belonged to living people," says Melanie Pitkin, a senior curator at the Chau Chak Wing Museum at the University of Sydney

This photograph may depict the iceberg that caused the Titanic to sink

This Historic Photograph May Depict the Iceberg That Sank the Titanic

The image, which sold for $22,000 at auction this week, was taken aboard a recovery vessel days after the famous ocean liner went down

Michael Sanchez initially thought the bird was black, but he later realized how colorful it was when he got home and started processing the photos.

Extremely Rare Blue Rock Thrush Spotted in Oregon Might Be the First Ever in the United States

Amateur photographer Michael Sanchez captured photos of the blue-and-chestnut bird on a beach—but he didn’t realize just how special the “mind-bending” encounter was, until later

An aerial view of the structure, which resembles a wonky, incomplete bow tie.

Cool Finds

This Neolithic Monument Found in France Has No Equal

A trio of interlocking enclosures, the structure may date to the time of the Bell Beaker culture, but experts are unsure of its exact age and purpose

The glass bottles buried in the graves were unearthed in good condition.

Cool Finds

In This Ancient Cemetery, Romans Left Fine Glass Vessels, Platforms for Feasting and Phallic Pendants

Archaeologists in Narbonne, France, have been studying the necropolis since 2017

Researchers are recruiting some 1,100 people globally to participate in the trial's third phase.

Personalized Melanoma Vaccine Could Be a 'Game Changer' by Teaching the Body to Fight Cancer Cells

The mRNA therapy, designed to prevent treated skin cancer from returning, is entering its third phase of trials

The Enterprise model had been missing for decades when it reappeared in an eBay listing last fall.

Original 'Star Trek' Enterprise Model Resurfaces Decades After It Went Missing

The model used in the original series' opening credits is now back with Eugene Roddenberry Jr., the son of the show's creator

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