A ranar 5 ga watan Agusta, 2011, shirin ya kashe dala miliyan 496. Bayan ƙaddamar da jirgin sama an kira shi GRAIL A da GRAIL B kuma an buɗe gasar ga 'yan makaranta don zaɓar sunaye. Kusan ɗakunan aji 900 daga jihohi 45, Puerto Rico da Gundumar Columbia, sun shiga cikin gasar. Sunaye masu nasara, Ebb da Flow, sun ba da shawara daga ɗaliban aji na 4 a Emily Dickinson Elementary School a Bozeman, Montana. Kowace jirgin sama ta watsa da karɓar telemetry daga sauran jiragen sama da kuma wuraren da ke ƙasa. Ta hanyar auna canji a cikin nisa tsakanin jiragen sama guda biyu, filin nauyi da tsarin ilimin ƙasa na wata.
Laboratory na Jirgin Jirgin Sama na NASA