List of Solar System probes
This is a list of space probes that have left Earth orbit, organized by their planned destination. It includes planetary probes, solar probes, and probes to asteroids and comets. Flybys that were incidental to the main purpose of the mission are also included.
Excluded are lunar missions, which are listed separately at List of lunar probes and List of Apollo missions. Flybys of Earth are listed separately at List of Earth flybys. Planned and proposed missions are in the List of proposed Solar System probes.
Key
Colour key:† means "tentatively identified", as classified by NASA. These are Cold War-era Soviet missions, mostly failures, about which few or no details have been officially released. The information given may be speculative.Date is the date of:- Some of the terms used under Type:
- Under Status, in the case of flybys that are incidental to the main mission, "success" indicates the successful completion of the flyby, not necessarily that of the main mission.
Solar probes
While the Sun is not physically explorable with current technology, the following solar observation probes have been designed and launched to operate in heliocentric orbit or at one of the Earth–Sun Lagrangian points – additional solar observatories were placed in Earth orbit and are not included in this list:Venus probes
Early programs encompassing multiple spacecraft include:- Venera program — USSR Venus orbiter and lander
- Pioneer Venus project — US Venus orbiter and entry probes
- Vega program — USSR mission to Venus and Comet Halley
Earth flybys
In addition, several planetary probes have sent back observations of the Earth-Moon system shortly after launch, most notably Mariner 10, Pioneers 10 and 11 and both Voyager probes.Mars probes
Major early programs encompassing multiple probes include:- Zond program — failed USSR flyby probe
- Mars probe program — USSR orbiters and landers
- Viking program — two NASA orbiters and landers
- Phobos program — failed USSR orbiters and Phobos landers
Uranus probes
Kuiper belt probes
Probes leaving the Solar System
| Spacecraft | Organization | Status | Notes | Image | Ref | ||||||
| Pioneer 10 |  COSPAR|1972-012AOther probes to leave Earth orbitFor completeness, this section lists probes that have left Earth orbit, but are not primarily targeted at any of the above bodies.
|