Aurora Borealis and Aurora Australis are primarily caused by geomagnetic storms, which are disturbances in the Earth's magnetic field triggered by solar activity.

Electrons, when accelerated by geomagnetic storms, collide with atoms and molecules in the Earth's atmosphere, causing them to emit light.

Auroras primarily occur in the thermosphere, which is the outermost layer of the Earth's atmosphere, located between 80 and 600 kilometers above the surface.

The most common color of the Aurora Borealis is green, due to the excitation of oxygen atoms in the atmosphere.

Similar to the Aurora Borealis, the Aurora Australis also typically appears in green due to the excitation of oxygen atoms.

The Auroral Zone is the oval-shaped region around the Earth's magnetic poles where auroras are most frequently observed.

The Aurora Australis is observed in the Southern Hemisphere, primarily around Antarctica.

A Global Aurora is a rare occurrence where auroral displays are visible in both the Northern and Southern Hemispheres simultaneously.

Aurora Dancing is the term used to describe the rapid fluctuations in the brightness and shape of auroras.

Solar activity, particularly the intensity of solar flares and coronal mass ejections, is the primary factor that determines the intensity and frequency of auroras.

During a total solar eclipse, the Moon's shadow blocks the Sun's radiation, causing a temporary decrease in solar activity. This can sometimes trigger auroras at lower latitudes.

Aurora Curtain is the name given to the auroral display that takes the form of a curtain-like structure.

Aurora Veil is the name given to the auroral display that appears as a faint, diffuse glow in the sky.

Aurora Streamer is the name given to the auroral display that takes the form of a bright, rapidly moving band of light.

Aurora Spot is the name given to the auroral display that appears as a bright, concentrated spot of light.