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Saturn Rings
The rings of Saturn were identified by Christiaan Huygens and Titan Was also discovered. -
Apollo 8
Apollo 8 was the first space craft to land on the moon successfully and plant the american flag on it. -
Mars 3
Mars 3 landed on mars and transmitted the first partial image. -
Dwarf Planets
Ceser, Pluto and Eris were clasified as Dwarf Planets due to their size.