Twin GRAIL

NASA’s powerful lunar mapping duo of GRAIL spacecraft are now poised for liftoff in just one weeks time on Thursday, Sept. 8.



Twin GRAIL Lunar Mappers being enclosed with payload fairing atop Delta II rocket. Spacecraft technicians monitor the movement of a section of the clamshell-shaped Delta payload fairing as it encloses NASA’s twin Gravity Recovery and Interior Laboratory spacecraft at Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. Liftoff is slated for Sept. 8 at 8:37 a.m. EDT.

Twin GRAIL

Credit: NASA/Jim Grossmann