Choose the word which is different from the rest.

The answer is: B. Moon

The Sun, stars, planets, and universe are all celestial bodies. The Moon is a natural satellite of the Earth.

• The Sun is a star, a giant ball of hot gas that gives off light and heat.
• Stars are much larger than planets, and they produce their own light.
• Planets are smaller than stars, and they do not produce their own light. They reflect the light of the Sun.
• The universe is everything that exists, including all of space and time.

The Moon is different from the other celestial bodies in the list because it is not a star, planet, or part of the universe. It is a natural satellite of the Earth.