Voyager 1 Pioneer 10 Voyager 2 Pioneer 11 New Horizons Distance from Sun Heliocentric Speed Hyperbolic Excess Distance from Earth One-way light time Notional DSN Coverage Distance Flown Launch 05 Sep 1977 03 Mar 1972 20 Aug 1977 06 Apr 1973 19 Jan 2006 Status Active Exploring outer Solar System Mission Ended Last very weak signals received 22 Jan 2003 Active Exploring outer Solar System Mission Ended Last signals received in November 1995 Active Enroute to Pluto for 2015 encounter Encounters Jupiter, Saturn Jupiter Jupiter, Saturn, Uranus, Neptune Jupiter, Saturn Jupiter, Pluto, KBO