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An artist's rendering of the Earth and sun seen from space. Astronomers on Earth can detect other worlds when far away stars flicker as an orbiting planet passes in front of them, partly blocking our view. New research asks how many alien worlds might have been able to detect Earth in this way.

New Research

If Aliens Exist in These 1,700 Solar Systems, They Can Probably See Earth

Hypothetical alien astronomers orbiting these stars could have seen the sun’s light flicker as Earth passed in front of it

A proposed government plan will move the A303 highway, pictured here in the distance behind Stonehenge's iconic structures, underground. But Unesco warned in a report Monday that the efforts might endanger the site's OVU, or outstanding universal value.

Unesco Weighs Changes to Stonehenge's Cultural Heritage Status

A new report also cited Venice and the Great Barrier Reef as sites that might be placed on the World Heritage in Danger list

Officials at the U.S. Centers for Disease Control and Prevention anticipate that Delta will become the dominant variant in the United States within the next few months.

Covid-19

Covid-19 Delta Variant Emerges as Primary Threat Around the World

A surge of cases in the United Kingdom suggests that Delta is the most transmissible variant yet identified

Rembrandt's 'Night Watch' is put in place at the Rijksmuseum during 'Operation Night Watch.'

Lost Edges of Rembrandt's 'Night Watch' Are Restored Using Artificial Intelligence

Experts have used new technology to recreate missing portions of the old master painting

The bright red regions were thought to be caused by molecules known as tholins, or organic compounds that rain down onto the surface after cosmic rays or ultraviolet light interact with the methane in Pluto's surface and atmosphere.

Pluto's Red Patches Are Mystifying Scientists

A new study suggests there's more to the dwarf planet's rust-colored deposits than meets the eye

Enslavers pocketed the majority of the money earned by enslaved individuals hired out as part-time laborers. But in some cases, enslaved people managed to save a fraction of their earnings in hopes of purchasing freedom for themselves or their families.

This Rare Copper Badge Tells a Story of Slavery in 19th-Century Charleston

The South Carolina city used the metal tags to identify enslaved people hired out as part-time laborers by their enslavers

Authorities have returned the illegally transported artifacts to their home country of Italy.

Officials Seize 782 Ancient Artifacts Acquired Illicitly by Single Belgian Collector

The trove of treasures, including a funerary slab, amphorae and pottery dated to pre-Roman times, is worth an estimated $13 million

Like the newly-identified 2014 UN271, the NEOWISE comet pictured here is a long-period comet originating in the Oort Cloud.

Giant Comet From the Oort Cloud Will Pass by the Sun in 2031

Astronomers used about 40 observations of the object, which is called 2014 UN271, to estimate its size and orbit

A snowflake moray eel peers out from its hiding spot.

New Research

To Capture Prey on Land, This Eel Has an Extendable, Extra Jaw Hidden Inside Its Throat

This second set of teeth allows some moray eels to more effectively feed in the intertidal zone when the tide is low

Currently, single-use plastics lose 95 percent of their value after use, causing a $110 billion loss to global markets every year.

Innovation for Good

Plastic Waste Can Be Transformed Into Vanilla Flavoring

Researchers used microbes to convert plastic waste into the chemical additive

Archaeologists are working to decipher the slab's 15 lines of hieroglyphs.

Cool Finds

Farmer Stumbles Onto Egyptian Pharaoh's 2,600-Year-Old Stone Slab

The large sandstone marker may be connected to a military campaign led by the 26th dynasty ruler Apries

Richard Henry Pratt, founder of the Carlisle Indian Industrial School, poses alongside students around 1900.

Remains of Ten Native American Children Who Died at Government Boarding School Return Home After 100 Years

The deceased were students at the Carlisle Indian Industrial School, whose founder's motto was "kill the Indian, and save the man"

A radar image of Venus' largest block of crust, located in the planet's lowlands and identified by the authors of a new paper.

New Research

Venus May Still Be Geologically Active

Radar images of the planet’s surface suggest large sections of its crust appear to have moved in the geologically recent past

An eighth- or ninth-century B.C. Urartian castle similar to the one recently found in eastern Turkey

Cool Finds

2,800-Year-Old Castle Linked to Enigmatic Ancient Civilization Found in Turkey

The structures dates to the time of Urartu, a kingdom that clashed with the Assyrians in the first millennium B.C.

Bronzino, Eleonora di Toledo and Francesco de’ Medici, c. 1550

Florence's Medici Family Used Portraits as Propaganda

A new exhibition at the Met reveals how the Italian banking dynasty drew on art to cement its power and legacy

Dried sea snot on the surface of the water can be so strong that seagulls can walk on it, and it can damage fishing boat motors.

Turkey Begins to Clean Smelly Sea Snot From Its Shores

The layer of marine mucilage threatens not only tourism and fishing boats but also creatures living in the Sea of Marmara

Cosmetics designed to stay on longer or marketed as "wear-resistant," "long-lasting," and "waterproof" contained the highest levels of PFAS.

Scientists Find Toxic 'Forever Chemicals' in More Than 100 Popular Makeup Products

Waterproof mascara and long-lasting lipsticks contained the highest levels of organic fluorine, an indicator of PFAS

People who reopened graves might take items like swords and brooches but leave more valuable objects untouched.

Cool Finds

Why Did Early Medieval Europeans Reopen Graves?

Contrary to some assumptions, the removal of objects from burial sites was not typically motivated by greed

Wassily Kandinsky, Curved Tips, 1927

Cool Finds

Rediscovered After 70 Years, Kandinsky Watercolor Sells for $1.3 Million

The modern art pioneer painted the work, which resurfaced in a private collection last month, in 1927

The Forever Marilyn statue's June 20 unveiling attracted protesters who view Seward Johnson's 26-foot-tall sculpture as an outdated symbol of sexism.

Why a Newly Installed Statue of Marilyn Monroe Is So Controversial

In the era of #MeToo, some view the sculpture—now on view in California—as a symbol of sexism

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