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What is an asteroid, a planetoid, a meteoroid?
On May 31st, 2013, an asteroid made its closest approach to earth in the next two centuries. But what on earth (or rather, in space) is an asteroid? This article explains what makes a…
On May 31st, 2013, an asteroid made its closest approach to earth in the next two centuries. But what on earth (or rather, in space) is an asteroid? This article explains what makes a…
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