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The Gaia space mission to be operated in early 2012 by the European Space Agency (ESA) will make a huge step in our knowledge of the Sun’s neighbourhood, up to the Magellanic Clouds. Somewhat closer, Gaia will also provide major improvements in the science of asteroids, and more generally to our Solar System, either directly or indirectly. Gaia is a scanning survey telescope aimed to perform high-accuracy...
Collisions play a capital role in the Solar System. Moon origin, tilt of Uranus pole axe, planet ring formation, heavy telluric planet surface craterisation, and the actual figure of the asteroid population are due to collisions. Unfortunately, models of collisions lay on laboratory experiments in which the involved targets and projectiles are centimeter sized objects. It is then difficult to apply...
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