India’s first unmanned lunar spacecraft Chandrayaan-I enters the moon’s orbit Successfully on Saturday. With this move India’s moon mission has been declared successful. The part include Both Joy and Anxiety, Joy for the launch of the Satellite and Anxiety for the later works with the orbiting motion. Now over all both are success and only Joy remains. Indian scientists were worried about the last part involved in it because it had to pass through Gravitational force where Earth’s and Moon’s cancels each other. When the spacecraft was about 500 km short of the moon, it was to be slowed down. The moon’s gravity would then pull the craft into its orbit. Later, it would be stabilised in a 100 km circular orbit.