Asteroids have held a special place in my heart ever since I saw one silently drift between Earth and the Moon a good few years ago. Never studied them properly so more of a passing interest but any time a story relating to asteroids pops up it peaks my interest. For the most part, the origin of an asteroid is the asteroid belt, a ring of rocky debris orbiting between Mars and Jupiter. A new study has calculated precisely how fast this reservoir of space rocks is being depleted from collisions and gravitational interactions that evict asteroids and just where that material ends up.
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