... The Satellites that Surround Earth . ... Also known as Barnard 33, the unusual shape was first discovered on a photographic plate in the late 1800s. X Ray Milky Way . ... If you had x-ray vision, the center regions of our Galaxy would not be hidden from view by the immense cosmic dust clouds opaque to visible light. ... Its core hidden from optical view by a thick lane of dust, the giant elliptical galaxy Centaurus A was among the first objects observed by the orbiting Chandra X-ray Observatory. ...