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Mission to study Vesta in 2011 and Ceres in 2015

minerals. The DAWN mission is part of NASA's Discovery program - an initiative for lower cost, highly focused, rapid-development scientific spacecraft. The mission marks the first time that a spacecraft will orbit a main-belt asteroid, enabling a detailed and intensive study to be made of it. Dawn will also do a fly-by of Mars in 2009 - the ion engines will then adjust the trajectory to match the orbit of Vesta.

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