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

So how did our planet end up with such a special moon? The answer is that, surprisingly enough, the moon is a piece of our ...

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

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

But when did this impact take place? Scientists believe the moon formed during a giant impact about 60-175 million years after the solar system was born. To arrive at this estimate, they can use rocks ...

This proposes that the Moon formed during a collision between the Earth and another small planet ... But hold onto your helmets. Did you know we’re offering an on-demand course about Rocks in Space?

The Earth was 4 billion years old then. Did the Earth have more oxygen in the past? 4 years after the Earth was formed. The atmosphere now contains almost no oxygen, as it did five billion years ago.

So how did our planet end up with such a special ... Artwork of the young Earth-moon system. The Earth had recently formed when it was struck by a protoplanet called Theia roughly three times ...