Why does a comet develop a visible glowing coma and tail only when it approaches the Sun?

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Geography · Comet

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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Solar radiation causes its frozen volatile gases to sublimate and glow

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Due to the gravitational pull of the inner planets creating friction

Answer 2

Because it collides with particles in the asteroid belt

Answer 3

Solar radiation causes its frozen volatile gases to sublimate and glow

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The comet's core undergoes nuclear fusion due to high cosmic pressure

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