Chang-e, Chinese goddess of the Moon, is the name of the ambitious Chinese lunar program whose goal is the exploration of the Moon, first by robots with return samples and then by manned flights.
Chang-e 1 is an overview of the Moon during the 2007-2009 period that mapped its surface and explored the space between the Earth and the Moon.
Chang-e 2 was tasked with mapping more precisely, especially the planned areas (Sinus iridum) for the landing of the Chang-e 3 and 4 probes.
Chang-e 3 was launched on December 1, 2013 and dropped the "Yutu" rover on the surface of the Moon. This rover traveled 114 meters and then stopped transmitting.
Chang-e 4 is scheduled for 2018: it carries a lander who must deposit a rover on the far side of the Moon and a telecommunication satellite to be installed at the L2 Lagrange point of the Earth-Moon system to communicate with the rover.
Chang-e 5 is scheduled for 2019: this mission aims to bring back samples of lunar rock on Earth.