Earth’s magnetic field, generated deep within the planet’s liquid iron core, has been bending, stretching, and occasionally flipping for billions of years. That invisible shield determines whether ...

Earth’s survival story has always invited grand explanations, from divine intervention to elegant equations in physics. The idea of a “newly found force field” around our planet taps into that same ...

As much as 45 oceans’ worth of hydrogen may be in Earth’s core, scientists reported, suggesting most of Earth’s water was ...

Not all of the solar system’s building blocks formed simultaneously. Some of the first solid bodies, or planetesimals, formed in the first million years after the Sun was born. Others, including the ...

Even when Earth was locked in its most extreme deep freeze, the planet’s climate may not have been as silent and still as ...

Ryugu’s samples reveal that water activity on asteroids lasted far longer than scientists thought, possibly reshaping theories of how Earth gained its oceans. A billion-year-old impact may have melted ...