Universe by The Chandra X-ray Observatory

While NASA's Hubble is one of the largest and most well-known space telescope for astronomy, there are actually four large, powerful space-based telescope that fall under NASA's series of Great Observatories - Hubble, the now deorbited Compton Gamma Ray Observator (CGRO), Chandra X-ray Observatory (CXO) and Spitzer Space Telescope (SST). Each serves a particular function (Hubble - visible