... Centaurus A: X Rays from an Active Galaxy . ... 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. ... X-Rays from the Galactic Plane . ... Tycho and Copernicus: Lunar Ray Craters . ... Farewell Jupiter . ... Next stop: Saturn. The Cassini spacecraft, launched from Earth four years ago, has now swung past Jupiter and should arrive at Saturn in the year 2004. ...