Astronomers predicted a mysterious object would hit the Moon on March 4 after tracking the debris for months. The object was large, and believed to be a spent rocket booster from the Chinese National Space Administration's Long March 3C vehicle that launched the Chang'e 5-T1 spacecraft in 2014. … "Surprisingly the crater is actually two craters, an eastern crater (18-meter diameter, about 19.5 yards) superimposed on a western crater (16-meter diameter, about 17.5 yards)," said NASA. No other rocket body lunar collision has ever created two craters to our knowledge. The strange ditch suggests whatever struck the Moon had a peculiar structure.