Txantiloi:Estatu Batuen planeta-ikerketa programak

i e a NASAko planeta-ikerketa programa
Indarrean	Explorer Small Explorer Voyager Discovery New Frontiers Flagship Mars Exploration Rover
Burututakoak	Pioneer Mariner Lunar Orbiter Ranger Surveyor Apollo Viking Planetary Observer Mariner Mark II MESUR Mars Surveyor '98 Mars Scout
Bertan behera utzitakoak	Planetary Grand Tour Voyager (Martitz) Prometheus programa Constellation New Millennium