Strange cone-shaped rocks led scientists to the hidden remains of one of Earth’s oldest asteroid impacts. It could help us find fossil life on Mars.

Something strange happens to water as it moves through the stems of horsetail plants – and this unique process provides valuable clues for understanding past and present ecosystems ...

The event in question is the Permian–Triassic Mass Extinction, also known as the “Great Dying,” which occurred around 252 ...

A study of fossils from the Permian-Triassic extinction event 252 million years ago shows that forests in many parts of the ...

Ancient supernovas may have blasted Earth with powerful radiation, causing dramatic changes in our climate and could do so again, posing a threat to life.

Ever been late because you misread a clock? Sometimes, the "clocks" geologists use to date events can also be misread.

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Ancient hunter-gatherers built monumental mounds at Kaillachuro in Peru without kings, rewriting history of "monumental ...

Earth's earliest life forms developed ways to survive the harmful effects of arsenic to cope with dramatic changes in their ...

Rocks older than 4.03 billion years could shed light on Earth's earliest geological history, but they're incredibly rare.