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 ...

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

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 ...

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