It is conventionally thought by many that the United States is the only country to conduct lunar missions. While this is the case in terms of sending people to the moon, other countries have sent unmanned probes to the moon to take pictures and collect samples.
Back in 2013, the Chinese government launched the Chang'e 3 Lander. It touched down on a place known as the Mare Imbrium. This has been a place of scientific interest, because it is thought that water may have once existed in these region of the moon.
While this mission has greatly expanded scientific knowledge when it comes to the moon's geology and history, there is still much to learned. The Chinese are planning to send another probe to the moon this year, in 2017. That is not to say that the current unmanned lunar robot is not functional, it is, but new instruments and modern gear must be sent up to gain a fuller understanding.