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NASA's IBEX Ready to Measure the Edges of Our Solar System

A NASA mission to measure and study the mysterious edge of the solar system is underway this week. The Interstellar Boundary Explorer (IBEX) is one of the low-cost "Small Explorers" missions - it can study the termination shock area of our solar system without even leaving Earth's orbit. How will it manage that? By… » 10/20/08 10:40am 10/20/08 10:40am