Ancient rocks reveal a potassium-40 deficit, the first physical evidence of the proto-Earth and insights into early planetary ...

Scientists have long wondered why Earth's overall makeup doesn't fully match the mix of materials found in ancient meteorites ...

Magnetic deposits laid down during the Ediacaran Period, 630 million years ago to 541 million years ago, are not inexplicable ...

Hidden deep in ancient rocks, scientists have found the surviving traces of Earth’s first form—unchanged for 4.5 billion ...

For decades, geologists labeled a billion-year stretch of Earth’s history—from 1.8 to 0.8 billion years ago—as the “Boring ...

Ancient rocks from Greenland, Canada and Hawaii preserve a rare chemical fingerprint that may come from the Earth before the ...

Scientists have found that ancient horsetail plants change water chemistry in surprising ways, offering new clues about Earth ...

A team of researchers at The University of New Mexico has uncovered how a peculiar, prehistoric plant might unlock new ways ...

A research team from the Nanjing Institute of Geology and Paleontology of the Chinese Academy of Sciences (NIGPAS), along ...

In most Ancient Greek philosophical circles, the theory of a spherical earth was accepted by around the 5th century BC, and ...

Carl Sagan explained the thought process of the ancient Greek scientist Eratosthenes, who determined the circumference of the ...