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The countdown to launch of the United Launch Alliance Delta II Heavy rocket nears on Cape Canaveral Air Force Station.

NASA

NASA
Washington, DC, United States

The countdown to launch of the United Launch Alliance Delta II Heavy rocket for NASA's Gravity Recovery and Interior Laboratory mission nears T-0 at Space Launch Complex 17B on Cape Canaveral Air Force Station. Liftoff is scheduled for 8:37:06 a.m. EDT.

GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future lunar vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Ken Thornsley

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  • Title: The countdown to launch of the United Launch Alliance Delta II Heavy rocket nears on Cape Canaveral Air Force Station.
  • Location: Cape Canaveral, FL
  • Owner: KSC
  • Album: cbabir
  • About Title: To help you find images you’re searching for, previously untitled images have been labelled automatically based on their description

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