Hubble Close-Up of Bright Nucleus in Comet P/Shoemaker-Levy 9

This is an enlargement of a NASA/ESA Hubble Space Telescope image of the "brightest nucleus" in a string of approximately 20 objects that comprise comet P/Shoemaker-Levy 9. The comet is hurtling toward a July I994 collision with the giant planet Jupiter.

Hubble's high resolution shows that this bright region is actually a group of at least four separate pieces. The HST images allow for the best separation of the individual nuclei and their surrounding halo of dust (comae), which results in a better estimate of the nuclear sizes.