Hello every one. It's obvious that all of the major planetary objects in our solar system orbit the sun in roughly the same plane. My question is, is our solar system in a similar plane as it orbits the center of the Milky Way? If so, do most star systems share the same plane? This came to mind recently as I was thinking about the search for exo-planets. The two ways I am familiar with when searching for evidence of exo-planets are cyclical 'dimming' as an orbiting object passes between we observers here and the star in question and the 'wobble' effect as the orbiting object's gravity pulls it's star to and fro. The first way would seem to only be effective if the orbit of the system we observe is in roughly the same plane as we are.