... A Total Solar Eclipse . ... Gamma rays are more than 10,000 times more energetic than visible light. ... The surface of Titan, Saturn's largest moon, is normally hidden from view by its thick, hazy atmosphere. ... Globular Cluster M5 . ... Stars orbit the center of the cluster, and the cluster orbits the center of our Galaxy. ... Named Dwingeloo 1, this nearby galaxy was only discovered recently (1994) because much of its light was obscured by dust, gas and bright stars of our own Milky Way galaxy. ...