The northern lights appear when particles from the Sun crash into the air high above Earth: oxygen glows green, while nitrogen adds purple and pink shades.
Someone must have hung glowing ribbons across the sky — imagine swinging on one!
Explore the palette: tap a color to see its swatch and associations in the color encyclopedia.
This picture has already been the picture of the day — on .
Every day the catalogue hands one scene to all the players at once: points for it are doubled, and whoever finishes fastest takes the record of the day.
About speed coloring, records and prizes →
Already colored by 48 artists
