COMETS

Image 1: This artist's concept of Tempel 1 simulates an optical view of the comet. The image illustrates the comet's shape, reflectivity, rotation rate and surface temperature, based on information from NASA's Hubble Space Telescope and Spitzer Space Telescope. (2005) Image Credit: NASA/JPL More Information: Spitzer Space Telescope home page Image 2: Giotto's encounter with Comet Halley provided the first ever opportunity to take images of a comet nucleus. The images were obtained with the Halley Multicolour Camera on Giotto. (2001) Image Credit: ESA More Information: Giotto mission home page