What component forms the vast, temporary atmosphere enveloping the comet’s nucleus as it nears the Sun?

Answer

The Coma

The coma is the cloud of gas and dust that expands around the nucleus when the ices begin to sublimate, acting as a temporary atmosphere that can reach hundreds of thousands of kilometers wide.

What component forms the vast, temporary atmosphere enveloping the comet’s nucleus as it nears the Sun?

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What is a Comet? | Learn about the Composition and ... - YouTube

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