grail-a

NASA's laboratory on Moon's orbit
NASA officials at the Jet Propulsion Laboratory in Pasadena, California, said the No. 1 Gravity Recovery Laboratory (GRAIL-A) entered the Moon's orbit at 22:01 GMT on December 31,
Two American ships are about to fly around the moon
The pair of spacecraft launched by the US Aerospace Agency (NASA) in September will fly to the moon's orbit around the weekend.
NASA 'moon' twins
Nasa's pair of 'twin' spacecraft called GRAIL-A and GRAIL-B was launched on the moon on September 30 and October 5 respectively. The spacecraft attached to the rocket is