![ninth-planet-1.jpg](https://assets1.cbsnewsstatic.com/hub/i/r/2016/01/21/e16db855-c956-4f63-b0f2-8d57bdcdf494/thumbnail/640x360/c859c872fb5c77d7ea6a199df2d00682/ninth-planet-1.jpg?v=5710b2ed1cee1bdfd30cb9c02455b43d#)
Adler Planetarium's Next Sky Show To Explore Potential Ninth Planet
Researchers at the California Institute of Technology have revealed evidence there might be a ninth planet on the fringes of the solar system, and an Adler Planetarium astronomer has been busy for months designing a sky show based on those findings.