The Canadian lunar rover could soon help reveal the far side of the moon. The country's first moon rover is set to put the Canadian Space Agency at the forefront of space exploration, helping in the global search for frozen water on the celestial body. NASA says the moon takes about 27 days to complete a full rotation on its axis as it orbits earth, leaving the same side visible from the ground at all times. As a result, the far side remains little understood and unexplored.