Chinese lunar samples suggest moon cooled down later than thought
Samples brought back from US and Soviet missions were more than 2.9 billion years old, but the samples from the Chinese mission were 1 billion years younger than that.
A super moon is pictured at the beginning of a total lunar eclipse above Rafah in southern Gaza Strip, on September 28, 2015.(photo credit: ABED RAHIM KHATIB/FLASH90)ByREUTERS
