NASA’s two Gravity Recovery and Interior Laboratory (GRAIL) spacecraft have struck the Moon in a controlled impact. At 5:28:46 EST (222846 GMT) Ebb, the first spacecraft, struck a mountain near the lunar North Pole. The second, Flow, hit about 20 seconds later. Because the impact occurred during a new moon, no images were available of the impact, though NASA was able to determine the time of the event by monitoring the moment that telemetry ended. The Jet Propulsion Laboratory in Pasadena, California provided live television and online commentary.
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