Houchin and his colleagues studied dozens of zircon crystals from the Jack Hills in Western Australia. These are the oldest ...

There are many open questions about how our planet formed 4.55 billion years ago: When did plate tectonics start? When did the Earth's mantle begin to vigorously circulate in a process called ...

UC College of Arts and Sciences Professor Thomas Algeo has been studying the planet's five major mass extinctions since the ...

Tiny life forms tucked into debris from an asteroid hit could catapult to other planets—including Earth—and survive, a new ...

Flame retardants, plasticizers, and "forever" chemicals are common in household items like cookware and cosmetics. But these ...

There is a constant outward flow of charged particles from the Sun. This flow, known as the solar wind, moves across space ...

For the past three decades, glaciologist Helen Amanda Fricker has been investigating polar regions — the fastest changing ...

NASA has always made it a point to encourage us citizen scientists to lend them a hand. Right now, they could really use your help protecting Earth against waves of punishing, disruptive solar winds.

A stream of charged particles known as the solar wind flows from the Sun toward Earth. Here, it meets the Earth's magnetic ...

Even when Earth was locked in its most extreme deep freeze, the planet’s climate may not have been as silent and still as once believed. New research from ancient Scottish rocks reveals that during ...

An experiment to quantify the amount of the universe’s lightest element in Earth’s core suggests that the planet’s water has mostly been here since the beginning ...

The oceans are the largest entity on Earth’s surface. All that blue, however, may be dwarfed by an immense reservoir of hydrogen concealed in the planet’s heart. Experiments indicate that enough ...