... Centaurus A: The Galaxy Deep Inside . ... Deep inside Centaurus A, the closest active galaxy to Earth, lies ... another galaxy! ... Deep Space 1 . ... A Deep Field In The Southern Sky . ... This new deep view of the cosmos is the sequel to the 1995 hit Hubble Space Telescope Deep Field. Billed as the Hubble Deep Field South, it was produced by pointing the space telescope toward a patch of sky in the southern constellation Tucana. ... Arecibo: The Largest Telescope . ... Twisting Meteor Train . ...