Full Face of Jupiter
Pioneer 11 peers down on Jupiter from above in this image. By building on the lessons of Pioneer 10's flyby, engineers were able to pass Pioneer 11 nearly 10 times closer to the gas giant than its predecessor. The probe went over the planet's pole to avoid its dangerous radiation belts, managing to produce the best pictures of Jupiter seen until then. Using Jupiter's gravity, Pioneer 11 was able to slingshot around the gas giant and travel on to Saturn.
Image: NASA Ames