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Summary - (Sep 21, 2004) NASA has chosen Northrop Grumman Space Technology to build its upcoming Prometheus Jupiter Icy Moons Orbiter (JIMO) spacecraft, and awarded them a $400 million contract to cover costs up to 2008. JIMO will use a nuclear-powered ion engine to go into orbit around each of Jupiter's icy moons: Callisto, Ganymede, and Europa. Once in orbit, the spacecraft would be able to examine each of the moons in great detail with a suite of instruments to try and understand their composition, history, and if there could be conditions for life. Full Story - NASA's Jet Propulsion...

PASADENA, Calif. (AP) - Northrop Grumman Space Technology has been selected to help NASA design a nuclear-powered spacecraft to orbit and explore three moons of Jupiter that may have oceans beneath their icy surfaces. The $400 million contract with the Redondo Beach, Calif.-based unit of Northrop Grumman covers work through mid-2008, NASA's Jet Propulsion Laboratory said Monday. The Prometheus Jupiter Icy Moons Orbiter spacecraft will be designed to explore Callisto, Ganymede and Europa sometime in the next decade, after launching in 2012 or later. Scientists want to know what the big moons are made of, their history and whether the...

ALBUQUERQUE, New Mexico – A NASA project to Jupiter and several of its moons may depend on the U.S. Navy to provide the nuclear know-how in building a reactor for deep space exploration. The Jupiter Icy Moons Orbiter (JIMO) program is a flagship mission under NASA’s Project Prometheus – a multi-pronged effort to develop near- and long-term nuclear electric power and propulsion technologies. JIMO would be powered by a compact nuclear reactor and propelled by a set of ion engines that expel electrically charged particles to generate thrust. NASA and the scientific community are considering adding a Europa lander to...