Sun

A geomagnetic storm occurs when charged particles from the Sun's atmosphere interact with Earth's magnetic field.

A coronal mass ejection (CME) is an eruption of plasma and magnetic field from the Sun's outer atmosphere that can expand as it travels through space and trigger geomagnetic storms upon reaching Earth.

Aurora displays, known as the northern and southern lights, occur when charged particles from the Sun collide with and excite atoms in Earth's atmosphere, and these displays are most commonly visible at high latitudes near the poles.

The Sun follows an approximately 11-year activity cycle during which its magnetic poles reverse, and solar maximum phases of that cycle are associated with increased magnetic activity and more frequent and widespread auroral displays.

A coronal mass ejection (CME) is a large burst of coronal plasma and embedded magnetic field that the Sun occasionally ejects into space.

The aurora borealis, also known as the Northern Lights, is a natural light display in Earth's sky caused by charged particles from the Sun interacting with Earth's atmosphere and magnetic field, and it is most commonly seen at high latitudes.

Coronal mass ejections (CMEs) are eruptions from the Sun that send streams of charged particles toward Earth and can drive geomagnetic storms and enhanced auroral activity.