huge range of astronomical topics. The SDSS website has a full list of these publications covering distant quasars at the limits of the observable universe, the distribution of galaxies, the properties of stars in our own galaxy and also subjects such as dark matter and dark energy in the universe. Maps Based on the release of Data Release 9 a new 3D map of massive galaxies and distant black holes was published on August 8, 2012. See also Alex Szalay Alfred P. Sloan Foundation Apache Point Observatory Dark Energy Spectroscopic Instrument Galaxy color–magnitude diagram Galaxy Zoo James E. Gunn Sloan Great Wall References Further reading Ann K. Finkbeiner. A Grand and Bold Thing: An Extraordinary New Map of the Universe Ushering In A New Era of Discovery (2010), a journalistic history of the project External links Alfred P. Sloan Foundation Astronomical surveys Exoplanet search projects Observational astronomy Photometric systems