Where can I find images of the comet P/Shoemaker-Levy 9 collision with Jupiter on-line?
A large (and growing) number of sites have these images. A set of over 200 images and links to many other sites is available on NSSDC’s Comet Impact page. URL: http://nssdc.gsfc.nasa.gov/sl9/comet_images.html • Where can I find images of the Moon and planets on-line? There are a number of places, both in and outside of NASA, where such images are available. Therefore, a comprehensive listing of such sites is neither possible or practical. However, there are some places worth pointing out. The first such site is NSSDC’s Photo Gallery, a service available from NSSDC for WWW users. The gallery shows a number of images (including non-planetary images) produced with data available from NSSDC’s archives and other sources. The collection of photos is growing, so keep an eye out for new additions. URL: http://nssdc.gsfc.nasa.gov/photo_gallery/ Another site at NSSDC is the Catalog of Spaceborne Imaging. This service contains exclusively planetary images and will hopefully eventually contain all