Remember the gravity mapping project on the moon?

NASA’s Gravity Recovery And Interior Laboratory (GRAIL)-B spacecraft successfully executed its first flight path correction maneuver Wednesday, Oct. 5. The rocket burn helped refine the spacecraft’s trajectory as it travels from Earth to the moon and provides separation between itself and its mirror twin, GRAIL-A. The first burn for GRAIL-A occurred on Sept. 30.

“Both spacecraft are alive and with these burns, prove that they’re kicking too, as expected,” said David Lehman, GRAIL project manager at NASA’s Jet Propulsion Laboratory in Pasadena, Calif. “There is a lot of time and space between now and lunar orbit insertion, but everything is looking good.”

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