"The Grand Canyon is an epic Rosetta Stone for geology," Denver Museum of Nature and Science geologist James Hagadorn said.

A massive meteorite that struck Earth early on in its history wreaked havoc on the planet, but the impact may have allowed ...

Scientists have calculated the Earth to be 4.54 billion years old, with an uncertainty of 50 million years on either side.

Around 700 million years ago, the Earth cooled so much that scientists believe massive ice sheets encased the entire planet ...

Most major geological events in Earth's recent history have clustered in 27.5-million-year intervals — a pattern that ...

If Earth's history were a calendar year, humans would not appear until the last few minutes before midnight on Dec. 31.

Imagine a world where continents are fused into one massive landmass, and life as we know it is on the brink of ...

We know from The Lord of the Rings that Tolkien crafted endless stars in his legendarium, but are there other planets too?

A rare Triassic fossil unearthed in Brazil, Gondwanax paraisensis, could provide new insights into the origins of dinosaurs.

Earth's tectonic history is what it is because of our planet's material composition. It's not like this on all planets, nor even all the rocky planets in our own solar system. However, the garnet ...