Previously, a 2015 study of Antarctic sea ice observed salt crystallizing in cold, windswept ice and found its reflectivity increased as temperatures dropped. And in a 2016 study of simulated Snowball ...

3. 25 Facts About Geologic Time That Made Our Brains Hurt 4. How Do We Know? A Glimpse into Geologic Sleuthing 5. Our Fleeting Moment in Deep Time 6. Frequently Asked Questions What if we told you ...

Geology was a discipline built to find the resources of our planet. The first real geologic map, crafted by William Smith in 1815, was part of a quest to find fuel for the Industrial Revolution. Smith ...

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 ...

Imagine thousands of huge asteroids raining down on ancient Earth, smashing craters as big as metropolitan Perth and a few much larger rocks which gouged holes as big as Australia into the planet.

Analysis of recently discovered zircon crystals reveals a sharp change in Earth’s geochemistry around 3.8 billion years ago. Researchers studying the ancient crystals say the likely explanation is the ...

The Geologic Time Scale 2012, or GTS2012, is the latest understanding of Earth's history, and the means by which geoscientists around the world investigate the rock record. A Boise State University ...

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 ...