A hidden crater in South Korea may hold clues to one of the biggest turning points in Earth’s history: the rise of oxygen. Scientists discovered fossil-like stromatolites — layered structures built by ...

A discovery by a South Korean research team suggests that impact-generated lakes may have fostered early oxygen-producing ...

Jezero Crater on Mars was once home to a lake, delta and rivers. See an animation of what it could have looked like when ...

Nuclear bombs irreversibly impact on the environment. Decades after the Trinity test, scientists are still learning about its ...