Although they are often referred to as synonyms, a comet and an asteroid are not exactly the same. Both are very ancient remnants of the formation of the Solar System, which occurred some 4.6 billion years ago, but are distinguished mainly by their composition and by how they react when approaching the Sun. Asteroids are rocky bodies, sometimes with metals, of irregular shapes and very varied sizes. Many are found in the asteroid belt, between M…
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Although they are often referred to as synonyms, a comet and an asteroid are not exactly the same. Both are very ancient remnants of the formation of the Solar System, which occurred some 4.6 billion years ago, but are distinguished mainly by their composition and by how they react when approaching the Sun. Asteroids are rocky bodies, sometimes with metals, of irregular shapes and very varied sizes. Many are found in the asteroid belt, between M…