The Milky Way has a partial diameter between 100,000 light years and 180,000 light years.
 About 40% of the Milky Way's clusters are on retrograde orbits, which means they move in the opposite direction from the Milky Way rotation
 The Milky Way contains at least one planet per star, resulting in 100400 billion planets, according to a January 2013 study of the five-planet star system Kepler-32 by the Kepler space observatory

