What did the snowball Earth look like? Entire continents, even in the tropics, seem to have been under sheets of ice.

Researchers may have finally cracked the age-old mystery about the origins of Earth's water, and the answer might be related ...

Researchers used atomic-scale computer simulations to discover the importance of carbon in forming a solid planetary core.

For more on where Earth and our Solar System fit into the deep history of the cosmos, check out the other posts in this series: How Old is the Universe? and How Old is the Earth?

Hundreds of millions of years ago, an asteroid caught by Earth's gravity might have fragmented, creating a temporary ring ...

The moon is Earth's longtime, familiar companion, the story of when and how it got there is actually a bit of an unanswered question in astronomy.

Towering cliff-like features known as escarpments interrupt the landscape, rising up by a kilometre or more. Taken aback by the dramatic scenery, I was struck by a question: how on Earth did it form?