When superfluid physics creates the illusion of alien civilizations - io9

When superfluid physics creates the illusion of alien civilizations - io9: The faster the star spins, the more vortices open up in the superfluid on the surface of the star. They don't do so randomly - they form in triangular patterns. When the patterns get large enough, they form latticework on the surface of the star. Someone approaching (and compensating for the spin) would see the surface of the star pitted in a regular pattern. Someone looking at a more slow-moving star would see huge triangles made up of regularly-spaced holes floating on the star's surface. They would look like large, stable, geometric structures - seemingly too regular to be natural.