(S (S (NP (DT The) (NP (ADJP (NP (BASENP (NN 2,300) (NNS pounds)) (PRN (LRB -LRB-) (BASENP (NN 1,043) (NN kg)) (RRB -RRB-))) (VBN spent)) (NP (BASENP (JJ upper) (NN stage) (NNP Centaur) (NN motor)) (PP (IN of) (BASENP (DT the) (NNP Atlas) (NNP V) (NN launch) (NN vehicle)))))) (VP (MD will) (VP (VP (VP (VB strike) (NP (BASENP (DT the) (NN surface)) (PP (IN of) (BASENP (DT the) (NN moon))))) (PP (IN at) (NP (BASENP (NN 9,000) (NN km/h)) (PRN (LRB -LRB-) (BASENP (NN 5,600) (NN mph)) (RRB -RRB-))))) (S (VP (VBG resulting) (PP (IN in) (S (NP (NP (DT a) (NP (ADJP (ADJP (NN 350) (NN ton)) (PRN (LRB -LRB-) (BASENP (NN 317) (NN metric) (NN ton)) (RRB -RRB-))) (NN plume))) (PP (IN of) (BASENP (NN debris)))) (VP (VBG rising) (PP (PP (IN between) (NP (NP (QP (BASENP (NN 6)) (PP (TO to) (BASENP (NN 30)))) (NNS miles)) (PRN (LRB -LRB-) (NP (QP (BASENP (NN 10)) (PP (TO to) (BASENP (NN 48)))) (NN km)) (RRB -RRB-)))) (PP (IN above) (NP (BASENP (DT the) (NN moon) (POS 's)) (NN surface)))))))))))) (PERIOD .))