This is a list of all spacecraft landings on other planets and bodies in the Solar System, including soft landings and both intended and unintended hard impacts. The list includes orbiters that were intentionally crashed, but not orbiters which later crashed in an unplanned manner due to orbital decay.
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Jupiter is a gas giant with a very large atmospheric pressure and internal temperature and thus there is no known hard surface on which to "land". All missions listed here are impacts on Jupiter.
Saturn is a gas giant with a very large atmospheric pressure and internal temperature and thus there is no known hard surface on which to "land". All missions listed here are impacts on Saturn.