A couple sits atop Tourkovounia Hill in Athens as clouds of Saharan dust cover the capital city.

Skies Over Athens Turn a Martian Orange Amid Saharan Dust Storm

Strong winds brought desert dust and heat across the Mediterranean this week, sparking health advisories and fires in Greece

A carved pendant plaque of a human head found at the Ucanal burial site.

Ancient Maya Royals' Remains Were Burned in a Public Ceremony to Mark a New Political Regime

Archaeologists discovered charred remains of former rulers tossed "haphazardly" into a tomb in present-day Guatemala, suggesting they had been removed from their original burial sites

An artist's illustration of two Ptychodus sharks eating sea turtles and ammonites in open water.

Paleontologists Unravel Secrets of 'Enigmatic' 33-Foot Prehistoric Shark After Fossil Discovery

Scientists didn't know much about Ptychodus, an ancient shark genus, because its remains were usually just fragments. Now, complete fossils reveal its body shape and hunting habits

Mount Ruang in North Sulawesi, Indonesia, spews ash on April 19, 2024, after a series of eruptions earlier this week launched molten rocks into the sky.

Volcano Erupts Amid Lightning Storm in Indonesia, as Residents Evacuate Potential Tsunami Threat

Plumes of ash from Mount Ruang forced the closure of an international airport, after a series of at least five eruptions this week

An artist's rendering of two massive Ichthyotitan severnensis—a newly discovered species—swimming in the open ocean some 200 million years ago.

11-Year-Old Uncovers Fossils of Giant Ichthyosaur in England, the Largest Marine Reptile Ever Found, Scientists Say

The jawbone fragments belonged to an 82-foot-long creature that represents a new species, according to a new study

A close-up of the Dragon's Egg Nebula, with two mismatched stars inside.

A Stellar Collision Birthed the 'Dragon's Egg' Nebula, a Puzzling Structure in the Milky Way

The colorful cloud of gas and dust has a violent origin—and this explains the unusual traits of two massive stars within it, astronomers say

An artist's illustration of Gaia BH3 and its companion star's "wobbling" orbit.

Astronomers Discover a 'Sleeping Giant' Black Hole in Our Galaxy—the Second-Closest Known to Earth

Called Gaia BH3, the dormant black hole is 33 times more massive than the sun, making it the largest recorded stellar black hole in the Milky Way

Bleached corals in the Great Barrier Reef during a previous mass bleaching event.

The World's Fourth Mass Coral Bleaching Event Is Underway—and It Could Become the Worst One Yet

The impacted reefs represent 54 percent of the planet's total, and that figure is currently increasing by 1 percent each week, NOAA scientists say

New research suggests that male bonobos exhibit aggressive behaviors such as chasing, charging, hitting and kicking more often than scientists thought.

Male Bonobos, Close Human Relatives Long Thought to Be Peaceful, Are Actually Quite Aggressive, Study Suggests

The new research found bonobos were three times more likely than chimpanzees to commit an act of physical aggression

Antarctic meteorite (HUT 18036) is found partially submerged in ice, as opposed to resting atop the surface. 

Meteorites Are Becoming Harder to Find as They Sink Into Antarctica's Melting Ice

The disappearing space rocks are burying valuable clues into the history and composition of our solar system, according to a new study

Avi Wigderson is the first recipient of both a Turing Award and an Abel Prize, math's top honor.

Mathematician Who Shed Light on Randomness in Algorithms Wins Top Prize in Computing

Avi Wigderson earned the 2023 Turing Award for wide-ranging work in theoretical computer science

Researchers from the University of Washington conducted an initial experiment of cloud brightening technology in Alameda, California, on San Francisco Bay.

A Secretive Experiment Released Salt Crystals Over San Francisco Bay—Could It Help Curb Warming?

The technology could make clouds reflect more sunlight, cooling the Earth below. But even the scientists leading the study say letting go of fossil fuels is a much-preferred response to climate change

A coal power plant in Germany.

80 Percent of Global CO2 Emissions Come From Just 57 Companies, Report Shows

Many of these companies increased their fossil fuel production after the Paris Agreement was signed in 2016

An artist's concept of Intuitive Machines' Moon RACER LTV

See NASA’s Initial Moon Buggy Concepts, Expected on the Moon by 2030

Three companies are competing to design NASA's lunar terrain vehicle (LTV) for the agency’s Artemis campaign

For each bad night of sleep in a one-month period, participants reported feeling three months older, on average, than they really are.

Bad Sleep Can Make You Feel Years Older Than You Really Are, Study Suggests

After just two nights of short sleep, a person’s “subjective age,” or how old they feel, can spike by more than four years

In a modified version of the mirror self-recognition experiment, eastern garter snakes showed signs that they recognize their own scent.

Can Snakes Recognize Themselves? One Species Has Passed a Modified 'Mirror Test' Based on Smell

Eastern garter snakes might recognize their own scents, suggesting the reptiles are more cognitively complex than thought, according to a new study

Earth rises over the moon's horizon, as seen from the Apollo 11 spacecraft in 1969.

NASA Will Create a New Time Zone for the Moon, Called Coordinated Lunar Time

With dozens of lunar missions on the horizon, a standard time-keeping system for the moon will assist with precise navigation, docking and landing

A person has tested positive for the H5N1 strain of bird flu just days after livestock across four states were reported to be infected.

First Human Case of Bird Flu in Texas Confirmed, Following Infections in Cattle—Here's What to Know

This marks only the second time in U.S. history that a human has contracted the H5N1 strain of avian influenza

Researchers found that lyrics in each of five popular music genres were becoming more repetitive and charged with negative emotions.

Song Lyrics Have Become Angrier, Simpler and More Repetitive, Scientists Find

An analysis of more than 12,000 rap, pop, country, rock and R&B songs from the past 50 years shows more emotional and straightforward lyrics

The digital reconstruction of Emperor Wu's face (left), alongside a painting made of him from the 'Thirteen Emperors Scroll' (right).

See The Face of Emperor Wu, a Sixth-Century Chinese Ruler Brought to Life with DNA Analysis

Genetic analysis of DNA from his skeleton offers not only a first glimpse at his face, but also insight into his mysterious death

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