A modest mission control center is up and running at NASA's Ames Research Center in Mountain View, Calif., this morning, overseeing the automated kamikaze plunge of a 2.5-ton spent rocket motor and a sensor-laden observer spacecraft named LCROSS into a shadowed crater on the moon's south pole. The goal of the $79 million mission is to a couple of plumes of moon dust to look for signs of water."The team got a tally-ho on the moon from LCROSS's camera at 6:42 a.m. EDT. "The moon looks awfully big," said one flight controller. "And it's only going to look bigger," replied another. Impact of the Centaur rocket stage is set for 7:31 a.m. EDT.