Learn how some of Earth’s magnetic field flips last longer than others, weakening our defenses against cosmic radiation.

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 ...

Earth’s magnetic field, the invisible barrier that deflects solar radiation and makes surface life possible, is not permanent ...

The record-breaking mission offers an unprecedented opportunity to study the geology of our planet’s largest layer.

Travertine is not only a geological wonder but also a popular building material. Its use dates back to ancient Rome, evident ...

Earth froze over 717 million years ago. Ice crept down from the poles to the equator, and the dark subglacial seas suffocated ...

Earth is truly unique among our solar system's planets. It has vast water oceans and abundant life. But Earth is also unique because it is the only planet with plate tectonics, which shaped its ...

The Department of Geology is about much more than rocks and minerals. Its faculty and students perform cutting-edge research on everything from how glaciers react to climate change to how molten lava ...

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 ...

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 ...