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This rendering shows what the wildlife crossing will look like when completed.

The ‘World’s Largest Wildlife Crossing’ Will Help Animals Walk Safely Over Eight Lanes of California Traffic

The 210-foot-long bridge across a busy freeway in Los Angeles County is expected to be finished in 2025

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

An anonymous dentist recognized the jawbone, because it looked similar to the CT scans he reviews every day at work.

Dentist Discovers Human-Like Jawbone and Teeth in a Floor Tile at His Parents’ Home

Scientists are planning to study the specimen, embedded in travertine from western Turkey, in hopes of dating and identifying it

Members of the Voyager 1 flight team celebrate after receiving health and status data from the spacecraft. Next, engineers need to enable the probe to start sending science data again.

Voyager 1 Sends Clear Data to NASA for the First Time in Five Months

The farthest spacecraft from Earth had been transmitting nonsense since November, but after an engineering tweak, it finally beamed back a report on its health and status

The world's oldest common loons, ABJ and Fe, in July 2020. The pair's 32nd and last hatched chick sits on Fe's back.

Follow the Soap Opera-Worthy Relationship Drama of the World’s Oldest Common Loons

Called ABJ and Fe, the duo mated every spring for 25 years—but they split up in 2022. Now, they’re back at their Michigan breeding grounds, showing no signs of getting together

Antonia, one of the new black-footed ferret clones. The first black-footed ferret clone was born in 2020. The two new ferrets are the second and third successful clones.

Scientists Clone Two Black-Footed Ferrets From Frozen Tissues in Conservation Effort

The aim of cloning the animals is to increase the genetic diversity of the endangered species

Scientists brought to life the silent, sleeping songs of two great kiskadees.

Scientists Translate Sleeping Birds’ Silent Songs Into Sound—and They May Have Recorded a Nightmare

Using surgically implanted electrodes and modeling, researchers brought to life the vocal muscle activity of sleeping great kiskadees

A researcher explores the depths of Umm Jirsan.

Extensive Desert ‘Lava Tubes’ Sheltered Humans for 7,000 Years, Archaeologists Find

Formed after volcanic activity, the underground caves periodically hosted early humans and their livestock in Saudi Arabia, facilitating cultural exchange

The vertebrae of the snake that the researchers dug up. Based on these bones, they estimate Vasuki indicus was between 36 and 50 feet long.

Scientists Uncover Bones of Massive Extinct Snake, Comparable in Size to the 43-Foot Titanoboa

The 27 vertebrae discovered in India suggest the enormous creature, dubbed Vasuki indicus, was between 36 and 50 feet long

Stonehenge was constructed in stages beginning about 5,000 years ago.

Were Stonehenge’s Builders Guided by the Moon?

Researchers are studying the monument’s connection to a celestial event that occurs every 18.6 years

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

Ötzi the Iceman has 61 tattoos across his abdomen, lower back, lower legs and left wrist.

How Did Ötzi the Iceman Get His Tattoos? Archaeologists and Tattoo Artists Unravel the Mystery

Ötzi’s 61 markings were likely hand-poked with a sharp tool, such as a piece of animal bone or copper, a new study finds

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

In an artist's rendering, a red giant star and white dwarf star circle each other. Material ejected from the red giant gathers and heats in the white dwarf, catalyzing a bright explosion.

A Rare Nova Explosion Will Soon Bring a ‘New Star’ to the Night Sky—How to Catch a Glimpse

In an event that occurs only once every 80 years, a distant remnant of a star will grow much brighter, briefly becoming visible to Earth

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

The tracks are located west of Ouray, Colorado, in the San Juan Mountains.

You Can Visit the World’s Largest Continuous Dinosaur Trackway, Now on Protected Public Land

In the Late Jurassic, a long-necked dinosaur made a 270-degree turn while walking in present-day Colorado—and left behind a rare treat for paleontologists

The incident took place on the popular Redstone Trail in Nevada's Lake Mead National Recreation Area.

Two Vandals at Lake Mead Toppled Rock Formations Made From 140-Million-Year-Old Dunes

Authorities are seeking information about the men, whose crime was captured on video on April 7

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

Hibernating common eastern bumblebee queens survived for a week while submerged underwater in a lab.

Hibernating Bumblebee Queens Can Survive Underwater for Up to a Week, Study Finds

Researchers discovered the insects’ unexpected superpower during an accidental laboratory snafu

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

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