MACHO Project Primary aim is to test the hypothesis that a significant fraction of the dark matter in the halo of the Milky Way is made up of objects like brown dwarfs or planets: these objects have come to be known as MACHOs, for MAssive Compact Halo Objects.
http://wwwmacho.mcmaster.ca/
MAP Home Page MAP is a MIDEX class mission, selected by NASA in 1996, to probe conditions in the early universe. MAP measures temperature differences ("anisotropy") in the cosmic microwave background radiation.
http://map.gsfc.nasa.gov/
NOVA - Runaway Universe Examines the size, future and fate of the universe as well as the possible existence of others. Also explores what happens in a supernova explosion, a map of the universe on a cosmological scale, and the ability to spin a spiral galaxy on two axes u
http://www.pbs.org/wgbh/nova/universe/
Sloan Digital Sky Survey A dedicated 2.5 meter telescope which uses sensitive electronic light detectors to systematically map a quarter of the sky, building a catalog of celestial objects, galaxies, and quasars.
http://www.sdss.org/