Question

Why Sun and other stars have their own Light, but planets do not?

Answer 1

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Because Planets Do not have nuclear fusion, they do not produce their own light. Instead, they shine with lightreflected from a star.

Answer 2

Answer:

Sun and other stars have their own light due to a process called nuclear fission which releases huge bursts of energy and light.Planets don't have this mechanism or process so they don't emit light