Cosmos draws inspiration from the cosmos. The club's logo is a metal orbital ring pierced by a needle — half planet, half X — glowing in purple and mint green on black. Step into No. 21 Trang Tien and you see a curved LED vault ceiling covering the entire room, an orbit symbol running across the screen, ring-shaped light columns hanging in the space, and the DJ booth placed in the middle of the floor so the musician and listeners are just an arm's length apart.