In a nutshell 41,000 years ago, Earth’s magnetic field weakened to just 10% of its current strength, causing auroras to appear globally—even over places like North Africa and Australia.

During a brief but dramatic chapter in Earth's history about 41,000 years ago, the planet’s magnetic field nearly collapsed. What followed was a cascade of environmental and biological changes ...

By comparison, the length of Earth’s day naturally fluctuates by several milliseconds per decade. “Earth is also despinning due to exchange of angular momentum with the Moon, lengthening Earth’s day ...

The magnetized rocks of Earth's crust and mantle, also known as the upper lithosphere, accounts for generating 6 percent of the planets magnetic field. Data from the European Space Agency's Swarm ...

DC’s Earth One graphic novels created epic new versions of DC’s superheroes, but will the Elseworlds line ever make a comeback? By Brad Curran. March 15, 2025, 11:12pm. Comments.

Since the magnetic field is sustained by geological activity deep within our planet, let’s start with an overview of its structure. Although we’ve hardly scratched Earth’s surface (the center lies ...

A preserved tree fossil gives an unprecedented view into a moment 42,000 years ago when the Earth’s magnetic field went haywire, triggering environmental chaos, influencing everything from an ...

Earth’s magnetic north is not static. Like an anchorless buoy pushed by ocean waves, the magnetic field is constantly on the move as liquid iron sloshes around in the planet’s outer core.

But the Earth's magnetic fields are not as fixed as you might think. "We know that over the past 200 years, the magnetic field has weakened about 9 percent on a global average.

How does the Earth generate its magnetic field? While the basic mechanisms seem to be understood, many details remain unresolved. A team of researchers from the Center for Advanced Systems ...

The phenomenon happens about every 11 years as the sun's shifting magnetic field flips. The sun’s solar activity reaches its peak at the middle of this cycle.

The Earth's magnetic field is essential to life as we know it. But it’s something we can never see – or hear, until now. In a recent study released on Oct. 10 by the European Space Agency ...