Since then, the status of the mission--and the conditions of the spacecraft--have remained somewhat mysterious to American scientists, but gradually information is funneling back. In December 2015, we learned the Yutu rover discovered a new kind of moon rock.

Now, China has made the data sent home by the two spacecraft open to the public, and Emily Lakdawalla from the Planetary Society (a non-profit organization that promotes space exploration) has made it more easily accessible by putting the images on a faster server and labeling them in English. Check out the treasure trove of images and data she posted online. The picture above is just a small taste of what the spacecraft have sent back.