About the map:
This map was created using NASA’s imagery of earth at night. The earth lit up at night looks very peaceful, but I thought it could use a little extra holiday cheer. To create the effect, each continuous area of brightness was first converted into a point. The point size was made proportional to the area of brightness, so the larger the area of brightness, the larger the point on the map. I then applied a festive colour scheme and rotated the colours as an animated GIF.