Earth's magnetic field is generated by the churn of its liquid nickel-iron outer core, but it is not a constant feature.

Polarized light observations from ALMA reveal the magnetic structures and galactic outflows in Arp 220, the nearest ultraluminous infrared galaxy to Earth, providing detailed field maps.

Deep inside Earth, two massive hot rock structures have been quietly shaping the planet’s magnetic field for millions of ...

Ancient volcanic rocks reveal how two giant hot regions beneath Africa and the Pacific have shaped Earth's magnetic shield.

Most of the time, the shape of Earth’s magnetic field is quite similar to that which would be produced by a bar magnet ...

From galaxies to the Sun, new research explains how turbulent motion can produce large-scale magnetic fields that remain ...

Scientists are mapping the Milky Way galaxy’s invisible magnetic field, revealing how it holds the galaxy together and ...

Add Yahoo as a preferred source to see more of our stories on Google. Over 11 years of satellite data reveal that Earth’s magnetic field is reshaping. (CREDIT: Shutterstock) More than a decade of ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Using 11 years of magnetic field measurements from the ...

Earth’s magnetic field has long been framed as a planetary force field, a protective bubble that keeps the worst of the Sun’s radiation at bay. Increasingly, though, scientists are finding that this ...

Nearly 3,000 kilometers beneath Africa and the Pacific Ocean, two immense rock masses have been quietly influencing Earth’s ...