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VANDENBERG AIR FORCE BASE, Calif. -- Workers in Building 1555 at Vandenberg AFB check the installation of the wing on the Pegasus rocket. The Pegasus will launch NASA's Interstellar Boundary Explorer Mission, or IBEX, satellite from Kwajalein Island in the Marshall Islands, South Pacific. IBEX will make the first map of the boundary between the solar system and interstellar space. IBEX is the first mission designed to detect the edge of the solar system. As the solar wind from the sun flows out beyond Pluto, it collides with the material between the stars, forming a shock front. IBEX conta…
