... Europe at Night . ... The above picture is actually a composite of over 200 images made by satellites orbiting the Earth. Star Wars in NGC 664 . ... Landsat 7 Views Planet Earth . ... Here, a high concentration of dust and molecular gas absorb practically all the visible light emitted from background stars. Polar Ring Galaxy NGC 4650A . ... A rare type of galaxy known as a Polar Ring, NGC 4650A is composed of an old central group of stars and a young ring of stars rotating farther out. ...