(i) Moon is the natural celestial body from the Earth.
(ii) It is our natural satellite. Therefore, initial explorations are always to the moon.
(iii) Soviet Union, USA, European countries, China, Japan and now India carried out such expeditions towards moon.
(iv) Russia had sent series of space shuttles called Luno towards the moon.
(v) In 1962 to 1972, USA carried out expedition to Moon.
(vi) In 1969, Neil Armstrong was the first man who landed on Moon.