NASA Moonshot

September 9, 2011 - 8:40 AM
This image provided by NASA shows NASA's GRAIL twin spacecraft await launch atop a United Launch Alliance Delta II rocket at Cape Canaveral Air Force Station, Fla. Thursday Evening Sept. 8, 2011. NASA's latest moonshot has been delayed again, this time until Saturday because of rocket concerns. High wind halted the countdown Thursday, and NASA aimed for Friday. Then late Thursday night, NASA bumped the launch to Saturday. Liftoff time is 8:29 a.m. (AP Photo/NASA - Thom Baur)