In a project titled “The International Flag of Planet Earth,” Pernefeldt mocks up a planetary flag and how it would appear in different uses, including sewn onto a space suit, planted on another planet, and held up in what one can only assume is a high-stakes interplanetary sporting event. The flag he designed is largely blue with a series of white, intersecting circles through the center. Pernefeldt went with a primarily blue flag to represent the overwhelming mass of water that covers Earth. The specific shade of blue was chosen with its display in space in mind — it’s supposed to stand out well against both the white of a space suit and the black of space.
(via This is the flag we’ll plant when we conquer an alien planet | The Verge)