That blue sand glow is from bioluminescence – a blue radiance that comes from the production and emission of light by a living organism. Volcanic stacks dot the foreground, while a thin fog layer scatters light on the horizon. The rays of light spreading from the left horizon were created by car headlights on the nearby highway, while the orange light on the right horizon emanates from a fishing boat. Visible far in the distance is the band of our Milky Way Galaxy.