ScienceNow: Researchers eager to hitchhike on a military/civilian weather satellite mission had their hopes dashed today. The Department of Defense has dropped a number of climate sensors from a satellite program as part of a restructuring of the National Polar-orbiting Operational Environmental Satellite System (NPOESS). The program had suffered schedule delays and billions in cost overruns (Science, 2 June, p. 1296), and the Pentagon says the overall changes will help save about $2.4 billion.