Discovery images of Plutonian satellites P1 and P2. "The enhanced-color
images of Pluto (the brightest object) and Charon (to the right of Pluto) were
constructed by combining short exposure images taken in filters near 475
nanometers (blue) and 555 nanometers (green-yellow). The images of the new
satellites were made from longer exposures taken in a single filter centered
near 606 nanometers (yellow), so no color information is available for them."
Credit: NASA, ESA, H. Weaver (JHU/APL), A. Stern (SwRI), and the Hubble Space
Telescope Pluto Companion Search Team