Washington, D.C. Pentagon, large five-sided building in Arlington county, Virginia, near Washington, D.C., that serves as the headquarters of the U.S. Department of Defense, including all three military servicesâArmy, Navy, and Air Force.
Located in the J Star Cluster, the Quad Planetary System (the Quad) takes its name from the four inhabited bodies that comprise it: the dwarf planet Qresh and its three moons, Arkyn, Westerley, and Leith. These four worlds represent a politically, economically, and legally entwined planetary unit.
We call them moons because they orbit planets the same way that the moon orbits around Earth. [Read: How the Moon Got There ]. The four biggest of Jupiter's 64 moons â the ones discovered by Galileo in 1610 â are named Io, Europa, Ganymede and Callisto. In Latin, our satellite's name is Luna..