Scientists 'RAVE-ing' about most ambitious star survey ever

Schematic orbits of stars moving quickly past the Sun, indicated on the Lund map of the Milky Way galaxy (copyright Lund Observatory, used with permission). The approximate distance of the Sun from the galactic center is the intersection of the three curves. Each curve indicates the orbit of a high-velocity star, with the arrow at the intersection indicating that star's velocity as it passes the sun. Note that the stars are moving at speeds less than the escape velocity.