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A cyclist in Uttenweiler, Germany, rides toward the rising sun on July 21, 2024, which briefly held the title of the hottest day on record, until it was broken again one day later.

Earth Reached Its Hottest Day on Record Twice in a Row This Week

The global average surface temperature soared to 17.15 degrees Celsius on Monday, or 62.87 degrees Fahrenheit, breaking a short-lived record set on Sunday

The Brazilian sharpnose sharks were purchased from fishers between September 2021 and August 2023.

Thirteen Sharks Test Positive for Cocaine Off the Coast of Brazil

All of the wild Brazilian sharpnose sharks tested in a new study had the drug in their bodies, but many questions remain about cocaine’s effects on aquatic creatures—and the humans who eat them

Meteors fly above Sydney, Australia, on July 28, 2022. The Southern Delta Aquariids will be easiest to see from the Southern Hemisphere, but will still be visible at southern latitudes in the United States.

How to Watch the Southern Delta Aquariids Meteor Shower

Though not as prolific as the Perseids, this annual spectacle is ‘scientifically interesting’ because its comet of origin remains a mystery

Two chimpanzees at the Budongo Conservation Field Station in Uganda

Chimpanzees Take Turns in Fast-Paced Conversations, Just Like Humans Do

A new study finds the average chimpanzee response time in gestured conversations is 120 milliseconds, which isn’t that far from the human average of 200 milliseconds

The Kei apple tree (Dovyalis caffra) is native to southern Africa. It is one of the species that will have its scientific name changed after a recent vote.

Botanists Vote to Remove Racial Slur From Hundreds of Plant Species Names

In a first for taxonomy, researchers opted to change scientific names containing derivatives of the slur “caffra” to derivatives of “afr,” in reference to the plants’ origins in Africa

Nearly 1,000 birds died in a single night after flying into windows at McCormick Place Lakeside Center in October 2023.

Chicago Building Where Nearly 1,000 Birds Died in One Night Last Fall Installs Bird-Safe Window Film

The glass-covered lakefront convention center has long been known among wildlife advocacy groups as a site of mass casualties for migratory birds

Astronomers released 25 new images to celebrate the 25th anniversary of the Chandra X-Ray Observatory's launch.

See 25 Stunning Images of the Cosmos From the Chandra X-Ray Observatory as It Celebrates 25 Years in Space

Chandra, the world’s most powerful X-ray telescope, has been peering at black holes, stellar explosions and dark energy for a quarter-century

Researchers experimented with venom from red spitting cobras (pictured here), as well as black-necked spitting cobras.

Common Blood Thinners Could Combat Snakebites, Preventing Tissue Damage and Amputations, Study Finds

An estimated 400,000 people per year are permanently disabled because of snake venom, which can cause lesions and necrosis at the bite site

A heat map of brain activity shows stable patterns before and after taking psilocybin in blue and green, while temporary changes are shown in red, orange and yellow.

See How the Brain Responds to Psychedelic ‘Magic Mushrooms’

A new study mapped large, temporary changes in brain areas related to introspection and one’s sense of self, after participants took a dose of the drug psilocybin

The ruins of Pompeii with Mount Vesuvius in the background. The city was destroyed during an infamous volcanic eruption in 79 C.E., and new research suggests an earthquake may have contributed to the damage and death toll.

Amid Its Volcanic Eruption, Pompeii Was Also Rocked by an Earthquake, Study Suggests

Researchers uncovered skeletal remains of two people in the ancient city that seem to have been killed by a building collapse caused by seismic activity

An illustration of NASA's VIPER rover drilling on the moon

NASA Cancels VIPER Moon Mission After Spending $450 Million to Build a Rover

The project was intended to look for water ice in the shaded craters on the lunar south pole

A reconstruction of a giant armadillo in the collection of paleontology at the Museo de La Plata in Buenos Aires, Argentina

Was This Giant, Armadillo-Like Animal Butchered by Humans in Argentina 21,000 Years Ago?

The creature’s bones show evidence of cutting with stone tools, adding to a series of findings that suggest humans were present in the Americas earlier than thought

An artist's rendition of the eight planets in our solar system. The planets are depicted closer together than they really are.

Astronomers Propose New Criteria to Classify Planets, but Pluto Still Doesn’t Make the Cut

The new definition would define planets based on mass, rather than more ambiguous shape and size characteristics

Prior to the auction, "Apex" was on exhibition at Sotheby’s galleries in New York.

Enormous Stegosaurus Skeleton Called ‘Apex’ Smashes Auction Records and Sells for $44.6 Million

The 150-million-year-old dinosaur became the most expensive fossil ever sold at auction, raising old questions about whether such specimens should be put up for sale

Rattlesnakes have gotten a bad rap over the years, but a live stream of their attentive parenting behaviors could help change that.

Look Into a ‘Mega Den’ of 2,000 Slithering Rattlesnakes With This Live Stream in Colorado

Run by researchers at Cal Poly, the stream is part of a citizen science initiative that aims to change the public’s perception of the much-maligned reptiles

Firefighters work to contain the Lake Fire burning in Los Padres National Forest in California. More than 3,900 fires have spread across California this year.

California Faces a Brutal Wildfire Season, With More Land Burned to Date Than in Recent Years

The state’s fires have burned more than 11 times as much land so far in 2024 than they had at this point last year, according to the most recent numbers from Cal Fire

DOC ranger Jim Fyfe and Māori ranger Tūmai Cassidy walk alongside a cetacean, thought to be a rare spade-toothed whale, being transported by Trevor King Earthmoving.

The World’s Rarest Whale May Have Just Washed Ashore in New Zealand

No one has ever recorded a live sighting of the spade-toothed whale, but experts say the dolphin-like creature found earlier this month is “no doubt” a member of the elusive species

Baby beluga whales and adults alike spend the summer in the Churchill River.

Watch Chatty Beluga Families Migrate With These Stunning Live Cams in Canada

Polar Bears International and Explore.org are once again capturing video footage and audio recordings of the social marine mammals as tens of thousands congregate in the Churchill River this summer

A new butter alternative uses synthetic fat to create taste of dairy butter without the need for cows.

New ‘Butter’ Made From Carbon Dioxide Tastes Like the Real Dairy Product, Startup Says

The company, called Savor, uses a synthetic fat to approximate the taste of butter and is seeking regulatory approval

A pit in the Sea of Tranquility, captured by NASA's Lunar Reconnaissance Orbiter.

Scientists Find an Underground Cave on the Moon That Could Shelter Future Explorers

Such caves could serve as lunar bases during upcoming missions, protecting astronauts against cosmic radiation and extreme temperatures

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