THE TADPOLE GALAXY, Taken by Hubble

"The Tadpole galaxy has been disrupted by collisions and has bursts of star formation out through its tail. But behind that galaxy are thousands of other galaxies. That to me shows the power of Hubble - it's not just what the telescope takes a picture of, it's everything else it captures at the same time."
- John Grunsfeld, former astronaut, NASA associate administrator for science