Aurora

An aurora is a natural light display in Earth's sky, predominantly seen in high-latitude regions (around the Arctic and Antarctic). Auroras display dynamic patterns of brilliant lights that appear as curtains, rays, spirals, or dynamic flickers covering the entire sky.

This 3D scene is an attempt at mimicking that effect using blender. The aurora effect is primarily made with the help of shader nodes.

I hope you like the results.

ENJOY !