Rosetta Spacecraft's Last Move: A Daring Dive Toward Comet Pits

Rosetta's descent will take it to a spot next to a 425-foot-wide (130 meters) pit informally named Deir el-Medina, which refers to a structure that had a similar appearance in an ancient Egyptian town. "The walls of the pits also exhibit intriguing meter-sized lumpy structures called 'goosebumps,' which scientists believe could be the signatures of early 'cometesimals' that assembled to create the comet in the early phases of solar system formation," ESA officials wrote in a statement. The landi