A recently excavated mastodon tooth found in a backyard, still embedded in the jaw

A Homeowner Found Huge, Fossil Teeth While Mowing the Lawn. Then, Excavations Revealed a Complete Mastodon Jaw

The new discovery is the first of its kind in New York state for at least 11 years and appeared in a county rich with mastodon remains

Happiness "lights up" similar areas on both modern and ancient body maps, with the exception of the liver, which was more significant for the ancient Mesopotamians.

Ancient Texts Reveal How Mesopotamians Felt Emotions—From Happiness in the Liver to Anger in the Feet

Researchers found that ancient Mesopotamians associated body parts with emotions, just as we do—but they discovered some hilarious differences

Astronauts Butch Wilmore and Suni Williams inspect safety hardware aboard the ISS in August 2024.

NASA's Starliner Astronauts Face Another Delay in Their Return Home, Drawing Out Their Unexpectedly Long Mission

Suni Williams and Butch Wilmore were supposed to stay at the ISS for a little over a week. It's now been more than six months, and the end date has been pushed again

A red-bellied woodpecker peers into a hole in a tree and spots a very alarmed-looking young screech owl. The photograph, which was highly commended in the contest, is titled "You're not my mother."

Check Out 14 Hilarious Winners From the Nikon Comedy Wildlife Photography Awards Contest

From an "awkward" smiling frog to embarrassing owl parents, this year's winners of the entertaining annual competition won't let you down

A representation of the evolution of the universe over 13.77 billion years.

James Webb Telescope Confirms the Universe Is Expanding Faster Than We Thought—and Scientists Still Don’t Know Why

The findings suggest that astronomers’ widely accepted cosmology models might be missing something—meaning the longstanding mystery known as the “Hubble tension” continues

A Nile crocodile.

Scientists Unlock the Secrets of Crocodile Skin and Its Irregular, Mystifying Patterns

The scales on crocodiles’ heads are very different from the skin appendages of other animals and even distinct from the scales on the rest of their bodies

Lightning strikes over the countryside near Potsdam, Germany, on July 10, 2024, following a period of high temperatures.

Google Reveals New A.I. Model That Predicts Weather Better Than the Best Traditional Forecasts

Instead of crunching mathematical calculations, GenCast was trained on four decades of historical weather data to produce an array of 15-day forecasts

The Large and Small Magellanic Clouds were recently captured by NASA astronaut Don Pettit aboard the ISS.

NASA Astronaut Shares Breathtaking Photos From the ISS, Featuring Galaxies and Glowing 'Star Trails'

On his fourth flight, Don Pettit is once again sharing the art of astrophotography, capturing and posting pictures of Earth, satellites and space

Researchers found that in 2023, a decrease in low-altitude clouds, specifically over the Atlantic Ocean, drove an increase in the planet's temperature.

Scientists Find Another Reason Why 2023 Was So Hot: a Decline in Low-Lying Clouds

According to new research, Earth might have reflected less solar radiation last year than in any other year since 1940, a trend that adds to the planet's warming

This image of the Geminid meteor shower, as seen from China, earned first place in the 2021 astrophotography contest by the International Astronomical Union Office of Astronomy Education.

How to Watch the Geminid Meteor Shower This Weekend

The peak of this popular annual meteor shower risks being washed out by an almost full moon this year—but stargazers can still spot shooting stars if they follow the right tips

New England Aquarium staff treat a cold-stunned sea turtle.

Hundreds of Sea Turtles With Hypothermia Are Washing Up in Cape Cod, Cold-Stunned as Temperatures Drop

New England Aquarium staff and volunteers are treating the reptiles, which have gotten trapped after venturing north earlier in the year. Experts say climate change is leading more turtles to get stranded in the bay

An orca named L82 Kasatka swims in front of Mt. Rainier, with a strand of eelgrass trailing from her dorsal fin. She belongs to the Southern Resident orca population, a critically endangered group in the northeast Pacific Ocean.

No, Orcas Probably Aren't Reviving the 'Dead Salmon Hat' Trend, Despite a Viral Photo, Experts Say. Here's Why

A recent photo of an orca swimming with a salmon on its head has fueled speculation that the fad, first observed in the 1980s, has re-emerged off the coast of Washington state. But some experts are less eager to jump to that conclusion

Computer simulated global view of Venus' northern hemisphere. 

Did Venus Have Oceans? This Surprising New Study Suggests Not, a Theory That Could Upend the Search for Extraterrestrial Life

The astronomers behind the research looked to the output from the nearby planet's toxic volcanoes for clues

NASA’s James Webb Space Telescope recently imaged the Sombrero Galaxy with MIRI (its Mid-Infrared Instrument).

See the Sombrero Galaxy Like Never Before, as the James Webb Telescope Captures It in Unprecedented Detail

The mid-infrared light image shows astronomical features that can’t be seen with visible light cameras or in previous infrared views—and in this shot, the galaxy doesn’t look much like a Sombrero anymore

A NASA scientist's picture out the window of a plane over Greenland, combined with the new radar map of Camp Century, at the bottom.

NASA Radar Detects Abandoned Site of Secret Cold War Project in Greenland—a 'City Under the Ice'

Camp Century was built in 1959 and advertised as a U.S. research site—but it also hosted a clandestine missile facility

The team stands around one of the stone circles.

Archaeologist Discovers Two Neolithic Stone Circles in England, Supporting a 'Sacred Arc' Theory

The idea suggests prehistoric people built a ring of stone circles in modern-day Dartmoor National Park around the same time that Stonehenge was created—and the new finds have just added another piece to the puzzle

A stock illustration of an asteroid near Earth. Astronomers believe our "mini-moon" originated from the Arjuna asteroid belt.

Earth Bids Goodbye to Its 'Mini-Moon' as Astronomers Investigate Where Our Planet's Asteroid Companion Came From

Preliminary research suggests asteroid 2024 PT5, which stuck around Earth for almost two months, has lunar origins

Stephan's Quintet includes four distant galaxies that are connected through gravity and one galaxy that is much closer to us but just happens to lie in the same direction in the sky.

Astronomers Spot a Galaxy Smashing Into Its Neighbors at 800 Times the Speed of a Fighter Jet

The collision in Stephan's Quintet was observed by WEAVE, a new instrument on one of the world's most powerful telescopes, in its first major scientific results

An illustration of two Skiphosoura bavarica in flight shows how the reptiles might have appeared in Jurassic skies.

Paleontologists Discover a New Pterosaur, Filling a Key Gap on the Evolutionary Timeline for These Flying Reptiles

Revealed by a German fossil, the newly described species sheds light on questions that scientists have been puzzling over for nearly two centuries

This view is just part of a new, high-resolution image of the sun's full surface captured by the Polarimetric and Helioseismic Imager (PHI) on the Solar Orbiter spacecraft.

Check Out the Highest-Resolution Images Ever Captured of the Sun's Entire Surface

Four new images show our nearest star in dazzling detail, with each one made up of 25 shots observed by the Solar Orbiter in 2023

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