What if we’re not Earth’s first big civilization?
How do we really know that there weren’t civilizations on Earth before ours? A new paper addresses this question.
Imagine if, many millions of years...
Cancer cells can be killed with dinosaur extinction metal
Cancer cells can be killed with metal from the asteroid that killed the dinosaurs, thanks to new research from University of Warwick UK and...
Large-mammal extinctions linked to ancient humans
Homo sapiens, Neanderthals and other recent human relatives may have begun hunting large mammal species down to size -- by way of extinction --...
How massive collisions delivered metal to early Earth
Planetary collisions are at the core of our solar system’s formation.
Scientists have long believed that after the Moon’s formation, the early Earth experienced a...
Marine fish won an evolutionary lottery 66 million years ago
Why do our oceans contain such a staggering diversity of fish of so many different sizes, shapes and colors?
A UCLA-led team of biologists reports...
Meteorite diamonds tell of a lost planet
EPFL scientists have examined a slice from a meteorite that contains large diamonds formed at high pressure.
The study shows that the parent body...
Feathered dinosaurs were even fluffier than we thought
A University of Bristol-led study has revealed new details about dinosaur feathers and enabled scientists to further refine what is potentially the most accurate...
Scientists discover clues to recovery from mass extinction
About 252 million years ago, more than 90 percent of all animal life on Earth went extinct. This event, called the "Permian-Triassic mass extinction,"...
Water ‘nearly everywhere’ in moon soil
Scientists have created the first quantitative map of water and its chemical building blocks trapped in the uppermost portion of the moon’s soil.
“The signature...
We think we’re the first advanced earthlings-but how do we really know?
Imagine if, many millions of years ago, dinosaurs drove cars through cities of mile-high buildings.
A preposterous idea, right?
Over the course of tens of millions...