... Two sulfurous eruptions are visible on Jupiter's volcanic moon Io in this color composite Galileo image. ... This bull's-eye pattern marks the impact of a mountain-sized comet or asteroid on the icy surface of Jupiter's moon Europa. ... Yogi appears to be leaning into the prevailing winds causing some to suggest that its color contrast may be caused by the accumulation of rust colored dust on its windward face. ... These ice chips were shed from Comet Swift-Tuttle. ... The Hydra Cluster of Galaxies ...