Dinosaur wrist discovery reveals new clue to how flight evolved
Scientists have uncovered a surprising piece of the puzzle in the evolution of flight: a tiny wrist bone in certain dinosaurs that may have...
Scientists discover seagull-sized pterosaur in Arizona desert
A team of researchers led by the Smithsonian has discovered the oldest known pterosaur fossil in North America.
Pterosaurs were flying reptiles that lived alongside...
These are the most concerning pieces of space debris
Tens of thousands of pieces of space debris are hurtling around Earth right now.
These defunct satellites, spent rocket stages, collision fragments and even a...
Scientists shake 10-story steel building to test earthquake safety—and it passed
In a groundbreaking experiment, engineers have tested the tallest steel-framed building ever placed on an earthquake simulator—and it stood strong.
The 10-story, 100-foot structure was...
This new concrete eats CO₂ and builds stronger, greener cities
Concrete has helped build civilizations for thousands of years, from ancient pyramids to modern skyscrapers.
But today, it's also a big polluter—responsible for up to...
Chang’e-6 uncovers hidden history of the moon’s mysterious farside
For decades, scientists have wondered why the moon’s two sides are so different.
The side we see from Earth, known as the nearside, is smoother...
The oldest rocks on Earth are more than four billion years old
Earth formed about 4.6 billion years ago, during the geological eon known as the Hadean.
The name “Hadean” comes from the Greek god of the...
Ancient DNA uncovers rare leprosy strain in the Americas thousands of years ago
A rare form of leprosy may have existed in the Americas long before European colonization, according to new research using ancient DNA.
The discovery challenges...
Scientists solve billion-year-old mystery of how continents formed
Scientists have long wondered how Earth’s continents first formed.
Now, a team of geologists from the University of Hong Kong (HKU) has made an exciting...
Scientists find a more effective way to treat high blood pressure
High blood pressure, also known as hypertension, is a common but serious health problem.
It affects millions of people in the United States and increases...