A small segment of the "Big Picture". The bright galaxy near the bottom is a giant elliptical galaxy M87. In its core, this galaxy harbors a massive black hole, probably a billion times the mass of our Sun, from whose vicinity emerges a powerful jet of radiation and particles. The galaxy is also a strong source of radio waves. In the upper part of the picture, two pairs of fuzzy blue and green images are seen. These are multiple exposures of the comet P/Tsuchinshan, taken in different filters; by chance, this comet was moving through the field of view when the images were taken.

Image credit: The Palomar-Quest Team, California Institute of Technology