Geology

The park’s newest hydrothermal feature has an otherworldly milky texture from dissolved silica

When large masses of water are moved from one place to another, this changes the shape of Earth and leads to a phenomenon called true polar wander

Chemical fingerprints from volcanic rock offer hints of what’s happening in the mantle below the area where three rift zones meet in East Africa

In 2008 scientists reported that rocks in Canada were the world’s oldest. New data appear to confirm this contested claim

The strength of Earth’s magnetic field and the amount of oxygen in its atmosphere seem to be correlated—and scientists want to know why

Evidence from Earth’s deep past suggests dramatic subduction zones can spread like a contagion

This tally of animals’ effect on Earth’s geology, equivalent to that of thousands of extreme floods, most likely is an underestimate

A long-lost slab of Earth’s crust may be pulling away the bottom of the oldest part of North America, scientists say

China is blocking exports of these vital minerals. What makes them so special?

Trump’s tariffs put a spotlight on the uninhabited Heard and McDonald Islands, which comprise a remote volcanic refuge for penguins and seals and a UNESCO World Heritage site

Critical minerals are in demand around the world for military, technological and other uses. A geoscientist shares what’s known about Ukraine’s reserves, which could help the country recover from war

Scientists with a new theory about how Earth’s early continents formed predicted where a superold impact crater should be—then found it