By Will Dunham WASHINGTON (Reuters) -Scientists have detected some of the oldest signs of life on Earth using a new method ...

Deep in some of Earth’s oldest rocks, traces of ancient life still linger, even when every cell has crumbled. You would not ...

Geologists discovered ancient rocks in Greenland that preserve the oldest known traces of Earth’s early magnetic field.

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

A new study uncovered fresh chemical evidence of life in rocks more than 3.3 billion years old, along with molecular traces showing that oxygen-producing photosynthesis emerged nearly a billion years ...

Ancient supercontinent Nuna's breakup around 1.5 billion years ago set off a chain of events that made Earth more habitable, ...

Microscopic magnetic fossils found in North Atlantic seafloor sediments may represent components of an internal "GPS system" for an ancient marine creature that used Earth's magnetic field to navigate ...

Antarctica's ice cores are like frozen diaries of Earth's past, preserving ancient air and climate clues. Most continuous ...

An international team of scientists have uncovered new evidence of ancient wildfires that reshapes our understanding of Earth’s ancient history.

Scientists continue to explore the deep story of how Earth and the moon formed. One idea has gained attention because it ...