By resurrecting a 3.2-billion-year-old enzyme and studying it inside living microbes, researchers at the University of ...

New method reveals chemical signs of early microbial life in ancient Earth rocks, showing photosynthesis evolved much earlier ...

Scientists say they have found geochemical traces of Earth’s ancient self hidden far below our feet, suggesting that parts of the planet that existed before the Moon-forming collision 4.5 billion ...

Millions of years before blue oceans and wandering continents, the Earth in its early days was a molten, tumultuous planet — a roiling mixture of rock and metal condensing within the nascent solar ...

New Curtin University research has revealed how massive ancient glaciers acted like giant bulldozers, reshaping Earth's surface and paving the way for complex life to flourish. The key to unlocking ...

Ocean temperatures well below freezing in Earth’s deep-past glacial phases imply some very salty waters. At the height of a ...

New research suggests that the explosive death throes of massive stars, known as supernovas, may have had dramatic effects on our planet's climate over its distant history. Investigating historic ...

More than a billion years ago, a shallow basin in what is now northern Ontario held a subtropical lake. The setting likely resembled modern Death Valley, where heat drives evaporation and leaves salt ...

New research shows ancient tropical oceans once held more oxygen than cooler regions, reshaping where early life could ...

Researchers use synthetic biology to reverse-engineer modern nitrogenases and rebuild their possible ancestors, in an effort to better understand the origins of life on Earth and beyond.

To better understand the circadian clock in modern-day cyanobacteria, a research team has studied ancient timekeeping systems. They examined the oscillation of the clock proteins KaiA, KaiB, and KaiC ...