This is a list of proposed space probes that are planned to focus on the exploration of the Solar System, ordered by date of spacecraft launch. Launched probes are in the List of Solar System probes and the List of active Solar System probes.
Suspended missions.
The following missions were suspended or cancelled because of political, budgetary, or other reasons. The spacecraft were already assembled at the time of suspension/cancellation, so these missions can be resumed.
References.
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