Moon mission soon to launch

NASA’S LUNAR-BOUND GRAIL twins are being prepared for launch at Cape Canaveral Air Force Station’s Launch Complex 17.

GRAIL-A and GRAIL-B will fly in tandem orbits around the Moon for several months to measure its gravity field in unprecedented detail. The mission will answer longstanding questions about the Moon, and provide scientists a better understanding of how Earth and other rocky planets in the Solar System formed.

GRAIL’s launch period opens September 8 and extends through to October 19. On each day, there are two separate instantaneous launch opportunities separated in time by approximately 39 minutes. On September 8, the first launch opportunity is at 10:37pm Sydney time (8:37am EDT). The second launch opportunity is 11:16pm (9:16am EDT).

Adapted from information issued by NASA/JPL-Caltech.

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