Jupiter's Little Red Spot

Explanation: This amazing color portrait of Jupiter's "Little Red Spot" (LRS) combines high-resolution images from the New Horizons Long Range Reconnaissance Imager (LORRI), taken at 03:12 UT on February 27, 2007, with color images taken nearly simultaneously by the Wide Field Planetary Camera 2 (WFPC2) on the Hubble Space Telescope. The Little Red Spot is the second largest storm on Jupiter, roughly 70% the size of the Earth.

Pluto

Image credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute.