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

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

Long before life thrived in Earth’s oceans, the planet’s magnetic field became disorganized. Deep within the ancient rocks of ...

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

The Ediacaran Period of Earth’s past was poorly understood, and the enigmatic fluctuations and magnetism could have been ...

Some of Earth's oldest rocks buried deep in Western Australia may hold new clues about the dramatic event that gave rise to ...

Could Earth have hosted an advanced civilization before humans? This intriguing question is at the heart of the Silurian ...

The study also compared the results with measurements of lunar anorthosites, which are rare rocks on Earth but very common on ...

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

Ancient trees may have played a key role in regulating Earth's climate during the last ice age—by 'breathing' less ...