Once a month
get new photos
and expert tips.

Science and Space
Main Health and Human Body Earth Space Prehistoric World A-Z

Photo Gallery: Asteroids and Comets

PREVIOUS10 of 11NEXT


Light reflects from the nucleus of the Tempel 1 comet in this Hubble Space Telescope image taken in 2005. The potato-shaped nucleus, which appears starlike because it's too small for Hubble to resolve, is 8.7 miles (14 kilometers) wide and 2.5 miles (4 kilometers) long. Photograph courtesy NASA, ESA, P. Feldman (Johns Hopkins University) and H. Weaver (Johns Hopkins University Applied Physics Laboratory)