... In all about 1000 kilometers long and 5 kilometers wide, only a section is pictured here as part of a combined color and black and white image based on data from the Galileo spacecraft. Flying Over Asteroid Eros West End . ... Exploring Comet Tails . ... In the spring of 1997 and 1996 Comet Hale-Bopp (above) and Comet Hyakutake gave us stunning examples as they passed near the Sun. ... These aurorae were caused by a large interplanetary shock wave that exploded from the Sun on April 4. ... April . ...