Micron

From Tardis Wiki, the free Doctor Who reference

The Micron were a tiny race that dreamed of universal domination.

The Micron were insects, each only one millimetre high, with six hemispherical eyes. They preferred a methane atmosphere. The Domination Council was the government of the Micron. The Micron planned to conquer the universe by purchasing large numbers of planets. (PROSE: The Tomorrow Windows)