Pioneer 10-Pioneer 11

Pioneer 10 was the first spacecraft to penetrate the asteroid belt between Mars and Jupiter and travel to the outer regions of the solar system. It returned the first close-up pictures of Jupiter, measured the temperature of Jupiter's atmosphere, and mapped its magnetic field. Pioneer 11 flew past Saturn and its moon Titan in 1979 during which the first close-up images of that planet and its rings were radioed to Earth.

All spacecraft images courtesy NASA
© The Children's Museum of Indianapolis, 1999