Sept 08 is Aug 15 in Chinese lunar calendar. It is so called Mid-Autumn festival, a festival for families to get together to enjoy fruit, eat moon cake and admire the round moon. Here is a good introduction of this important festival:
There is a story about moon — Chang E. To watch the story, please visit here.
If you want to find out even more, there is a famous song “Bright Moon Sends Yearning Over A Thousand Miles” which expresses deep yearning of the loved ones over great distance.