Synopsis Scientists have for decades contended with the possibility of water repositories on Moon. Now this decades-long debate is over. India's maiden moon mission-Chandrayaan-1-has evidence of water molecules on the moon's surface. NASA has confirmed this discovery. This book presents a detailed account of the journey of Chandrayaan-1-its launch, specifications, objectives, pay-loads and achievements. It also describes in detail the unmanned and manned moon mission of the Soviet Union and America. The possibilities and constraints of human settlement on moon find place in the discussion as well.