So the Delta II rocket launch I got to see in Florida way back in September of this year finally has its double craft payload reaching its target: the Earth’s moon.
NASA’s two Gravity Recovery And Interior Laboratory (GRAIL) spacecraft are closing in on their quarry, the moon. The mission plans New Year’s Eve and New Year’s Day main engine burns to place the twin spacecraft in lunar orbit.
GRAIL A goes into orbit of the moon today, with the B craft going into lunar orbit tomorrow (New Year’s Day)