Earth & Environment

Dirty Air May Cause Rheumatoid Arthritis Flares

People living with rheumatoid arthritis may have another reason to pay attention to air quality. A large study from South Korea found that exposure to...

Are Cats Getting Tamer, Or Is It People Who Are Changing?

Around 15 years ago, I created a Facebook page for my cat, Sandi. Friends thought it was weird. Today, social media accounts for cats attract millions...

Just Four Questions Could Reveal How Good You Are at Protecting Your Personal Data

Most people say they care about privacy, but their everyday behavior does not always match their concerns. Now, researchers have developed a simple four-question...

Dinosaur Stomach Stones Reveal Surprising Secrets About How Ancient Giants Digested Food

How did dinosaurs digest their meals? Since soft tissues such as stomachs and intestines almost never fossilize, scientists have had very little direct evidence about...

Hidden Toxic Metals Found in City Road Dust, New Study Warns

Dust blowing through city streets may seem harmless, but new research suggests it can contain hidden metals left behind by decades of human activity. While...

Can pumping groundwater really flip Earth’s poles

Recently, a government minister in the Northern Territory, pitching a plan to make Darwin "the data center capital of the globe," suggested it might...

Tiny diamond reveals hidden water pathway deep inside Earth

A tiny diamond from Brazil has provided scientists with remarkable new evidence that water may travel much deeper into Earth's interior than previously thought. Hidden...

Scientists Discover Thousands of Tons of Undeclared Uranium Hidden in DRC Cobalt Supply Chain

A new study has found that large amounts of uranium have been leaving the Democratic Republic of the Congo (DRC) for more than 20...

Scientists Trace Modern Human DNA to Two Long-Lost Human Ancestors

Scientists have uncovered new evidence that modern humans inherited DNA from two previously unknown ancient human relatives, revealing another surprising chapter in our evolutionary...

Solar wind creates giant space waves that slowly strip away Mars’ atmosphere

Mars is slowly losing parts of its atmosphere to space, and scientists have discovered that the process may be driven by giant waves created...

Why Monkeys Befriend Dogs, Deer and Other Animals

Why do humans enjoy keeping pets? A new international study suggests that the answer may reach much further back in evolution than scientists once believed. Researchers...

Dinosaur-Killing Asteroid Created a Planet-Wide Firestorm, Study Finds

A new study suggests that the asteroid impact that wiped out the dinosaurs may have been even more deadly than scientists once thought. Researchers now...

FEATURED

Why the ocean around Greenland is expected to drop—even as the world’s seas rise

Sea levels are rising across most of the planet as the climate warms and ice melts. But around Greenland, scientists say the opposite is likely...

How did life’s building blocks arrive on Earth? Zinc in meteorites offers new clues

Scientists have discovered that meteorites, specifically unmelted asteroids, may have played a key role in bringing the essential ingredients for life to Earth. Researchers from...

Wolves and dogs remember where food is hidden, shows study

Ever played hide and seek with your dog using treats? You might think your dog finds the hidden treats solely based on their strong sense...

Your dog wants to rescue you, as long as they know how

What to do. You're a dog. Your owner is trapped in a box and is crying out for help. Are you aware of his despair? If...

Meet our long-lost cousin: Scientists discover a new ancient human relative

An international team of scientists has made an extraordinary discovery in Ethiopia’s Ledi-Geraru region: new fossils that suggest early humans and another ancient relative,...

Did ancient Egyptians use waterpower to build the pyramid of Djoser?

A new study suggests that the ancient Egyptians might have used a unique hydraulic lift system to help build the Pyramid of Djoser, one...

How a modern koala is related to a ferocious ice age predator

Koalas may look like peaceful, eucalyptus-chewing tree-dwellers, while the marsupial lion was one of the fiercest Ice Age predators ever to roam Australia. But scientists...

Neandertals got picky about bones for their tools

Evidence continues to mount that the Neandertals, who lived in Europe and Asia until about 40,000 years ago, were more sophisticated people than once...