But while lifeless during that time, the planet was already covered by vast oceans dotted with hydrothermal vent systems that ...

New research led by a York University professor sheds light on the earliest days of Earth's formation and potentially calls ...

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

We may be starting to get a grasp on what kick-started life on Earth – and it could help us search for it on other planets ...

Scientists have calculated the Earth to be 4.54 billion years old ... originating some 3.4 billion years ago. Stromatolites are sedimentary formations, fossil evidence of the earliest colony ...

Earth formed over 4.5 billion years ago from a swirling cloud of gas and dust squished together by gravity. That same cloud gave rise to our entire solar system, including our star, the sun.

As Earth's only natural satellite ... at 4.25 billion and 3.87 billion years ago. The 4.25 billion-year-old Norite showed distinct mineral grain sizes and structures, with clear evolution trends ...

Scientists have discovered evidence that Earth's oceans were once green, hinting that this could be a marker of early life, ...

The crater, located near the Pilbara town of Marble Bar, is thought to have been created 3.47 billion years ago.

So where was there sufficient phosphorus four billion years ago for life ... of phosphorus in water occurred on Earth billions of years ago. Earth scientist Craig Walton has a new answer: large ...