Coloradans were treated to spectacular aurora views on Tuesday night. Another show is possible tonight as more solar material interacts with Earth's magnetosphere.

An already gigantic hole in Earth’s natural force field has grown by nearly half the size of Europe in 10 years, according to a new study. The Earth is protected by the cosmic equivalent of cling film called the magnetic field, generated by swirling iron currents in the liquid outer core.

For the unversed, a severe geomagnetic storm occurs when the Earth's magnetic field is disturbed by magnetic field or plasma structures, such as corotating interaction regions (CIRs) and coronal mass ejections (CMEs). These materials are occasionally ejected by the sun and appear to have a somewhat bubble-like structure.

Thanks to a rare geomagnetic storm, the Northern Lights are visible in some parts of Texas — including in San Antonio.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Earth’s magnetic north pole has shifted away from Canada and closer to Siberia at a rapid pace in recent years. Researchers believe two massive blobs of molten ...

Northern Lights may dazzle again tonight as a severe geomagnetic storm reaches peak intensity across regions. Follow live.

The sky cleared enough Tuesday night to reveal a strong geomagnetic storm whipping by Earth at millions of miles per hour, prompting beautiful views of the northern lights across all six New England states. The purple, red, and green hues were easily visible to the naked eye and enhanced by smartphone cameras.

Magnetic resonance imaging (MRI) machines can clearly view non-bony parts of the body—soft tissue such as the brain, muscles and ligaments—as well as detect tumors, making it possible to diagnose many diseases and other conditions. However, the ...