Rocks gathered along the Colorado River contained evidence of a bustling community of animals in an ancient sea.

Astronomers have likely witnessed a planet forming in real time, seen inside a spiral arm of the HD 135344B protoplanetary ...

The discovery, in a bizarre animal not closely related to birds, could change how scientists think about the origin of ...

In the 1950s, Stanley Miller and Nobel laureate Harold Urey conducted experiments at the University of Chicago in which they ...

The ice cores could offer clues about a period known as the Mid-Pleistocene Transition that has long puzzled scientists ...

Scientists break down the reasons why days are getting shorter—and the mystery they're still trying to solve about Earth's ...

In a twist worthy of a detective novel, a long-misidentified fossil at Harvard's Museum of Comparative Zoology (MCZ) has ...