About 4 billion years ago, Earth began to show signs of the conditions that allowed the first cells to take hold and populate ...

Single-celled organisms that group together can generate stronger water currents to pull in food, a benefit that may have ...

New research suggests “microlightning” exchanges among water droplets in Earth’s early atmosphere may have sparked the ...

The changes in ocean chemistry were gradual. The Archaean period lasted 1.5 billion years. This is more than half of Earth’s ...

The reason Earth’s oceans may have looked different in the ancient past is to do with their chemistry and the evolution of ...

Tiny magnetic bacteria that live in tightly bound groups are showing scientists how life might have evolved complex, multicellular forms. These rare bacteria can’t survive alone – they depend on one ...

But real lightning would have struck infrequently—and mostly in open ocean, where organic compounds would have quickly ...

Life on Earth had to begin somewhere, and scientists think that “somewhere” is LUCA—or the Last Universal Common Ancestor.

Humans who've spent time in space, including Britain's first ever ... While the complex physical health issues that astronauts might experience when they re-enter Earth's atmosphere are well ...

The building blocks of life on Earth may have been ... Most of the available information suggests that early Earth didn't have a huge supply of these complex molecules, if any at all, but it ...

To recreate a scenario that may have produced Earth’s first organic molecules ... and form more complex molecules, eventually leading to the evolution of life. “Microdischarges between ...