Earth's history reveals that the evolution of oxygen, nutrients, and life are interconnected, offering insights into potential biosignatures on other planets.

A new look at ancient rocks suggests that a self-sustaining nutrient cycle in ancient oceans helped keep Earth's atmosphere rich in oxygen for millions of years. A newfound amoeba just set a ...

If you've got a sneaking suspicion that there is alien life out there, you are, er, not alone! In fact, a study shows 95 per cent of us – including top academics, doctors and scientists – believe in ...