The persistent solar wind eventually sparked an aurora substorm and created dazzling northern lights displays down to mid-latitudes. But how? "Sometimes slow and steady wins the race! Despite ...

A substorm within a coronal mass ejection (CME) impacted Earth's atmosphere in the predawn hours on Thursday, leading to a ...

but there is plentiful evidence that this can be supplied from the outer regions by induced electric fields as a result of the substorm cycle — a cycle of energy storage in the magnetic field ...

The illustration shows magnetic field lines around the Earth reconnecting in the magnetotail, usually one of the first signs of a substorm. An internally funded Southwest Research Institute ...

The latest in a recent run of geomagnetic storms slammed Earth on Monday night, sending auroras atypically far south in the Northern Hemisphere. Spawned by a coronal mass ejection, or wave of ...

A powerful G4 geomagnetic storm sparks widespread auroras, lighting up skies across the U.S. with stunning northern lights displays.

An aurora hunter in Alaska captured the “best aurora” of the season on Sunday, September 15, when the brilliant lights could ...