Pioneer program

A program of unmanned space missions designed for planetary exploration. There were a number of such missions in the program, but the most notable were Pioneer 10 and Pioneer 11, which explored the outer planets and left the solar system. Both carry a golden plaque (see Pioneer plaque), depicting a man and a woman and information about the origin and the creators of the probes, should any Extraterrestrials find them someday.

• Pioneer 0
• Pioneer 1
• Pioneer 2
• Pioneer 3
• Pioneer 4
• Pioneer 5[?]
• Pioneer 6[?]
• Pioneer 7[?]
• Pioneer 8[?]
• Pioneer 9[?]
• Pioneer 10: Jupiter, interstellar space
• Pioneer 11: Jupiter, Saturn, interstellar space

See also: Timeline of Planetary Exploration