The Icarus Base was an off-world Tau'ri base built in 2007, twenty-one light years from Earth on the planet P4X-351, in the Milky Way galaxy, which housed a Stargate. The personnel stationed there wore uniforms unique to the base. It contained a runway and several F-302 fighter-interceptors. It was also protected by a number of RG/BBT SG military mounted gun emplacements. (SGU: "Air, Part 1", "Human")