By exposing organic molecules to repeated wet-dry cycles, researchers observed ... the molecular complexity needed for life to emerge. To simulate early Earth, the team subjected chemical mixtures ...

What water, chemistry and temperature cycles fostered the chemical reactions that allowed life to emerge on our planet? Because life arose in the largely unknown surface conditions of Earth’s early ...

Research shows how Earth's climate suddenly warmed 10°C, transforming ecosystems and causing the worst mass extinction in history.

To complete the arctic fox's life cycle. Life cycles are as varied and diverse as life on Earth. Whether it's a mammal, like the arctic fox, or a bird, or a plant or an insect, different groups of ...

Earth's northern hemisphere warms up literally for the astronomical start to spring. Here's what to know about the season.

A team of researchers say their latest attempts to understand how molecules chemically reacted to form the basic building blocks of life on Earth are promising. There has long been debate about the ...