It's a creeping movement, but a momentous one. Some 200 million years ago, a single, extraordinary supercontinent called Pangea dominated Earth. Ultimately, landmasses ruptured and pulled apart, ...

The Global Positioning System works because satellites carry atomic clocks. Those satellites orbit high above Earth, where ...

In this mind-bending journey, we’re going to explore 25 facts about geologic time that will fundamentally change how you think about our planet, life itself, and humanity’s place in the cosmic story.

Every 200 million years, high-energy comets may pelt our planet as it passes through our galaxy's spiral arms. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

Jurassic, Pleistocene, Precambrian. The named times in Earth’s history might inspire mental images of dinosaurs, trilobites, or other enigmatic animals unlike anything in our modern world. Labels like ...

From climate change to species loss and pollution, humans have etched their impact on Earth with such strength and permanence since the middle of the 20th century that a special team of scientists ...

The Fellowship did not begin the Quest in the Shire; nor did the Quest end in the darkest depths of Mordor. There was no trekking through the Mines of Moria, and the Plains of Rohan remain untrod, for ...

Some comments and discussion in a recent post about stratigraphy motivated me to finish this post about the future of sedimentary geology, which I started a few months ago but never finished. The fact ...

This schematic of the Earth's crust and mantle shows the results of a new study that found that iron's heavier forms (isotopes) would have concentrated near the bottom of the mantle as it crystallized ...

At first glance, Mars might seem rather different from our own planet. Mars is dry, with little atmosphere, and no liquid water on its surface. It is half the size of Earth, lacks a planetary magnetic ...