Chandrayaan-I finds water on moon

India's maiden moon mission Chandrayaan-I has detected evidence of water across the lunar surface, scientists announced today.Moon Mineralogy Mapper, a NASA instrument onboard Chandrayaan-I, detected wavelengths of reflected light that would indicate a chemical bond between hydrogen and oxygen in materials on the thin layer of upper soil.The Moon Mineralogy Mapper or M3 has confirmed existence of water on moon by analysing the data collected from Chandrayaan-I.The finding ends four-decade long speculation on whether there is water on moon.Scientists first claimed that water existed on moon about 40 years ago after they analysed rock samples brought to earth as souvenirs by Apollo astronauts.But they had doubts about the findings as the boxes in which the moon rocks were brought to earth had leaked contaminating the samples with air from the atmosphere.