I orbit the Earth, but I'm not a planet; my phases change, yet I am always present. What am I?
Category: Science · Difficulty: hard
Hint: Think about the natural satellite of Earth.
Answer
Lunar body
Explanation
The Moon is a natural satellite that orbits Earth, and its phases change due to its position relative to the Earth and the Sun.
This is a hard science riddle — a tricky one that takes a little thought. The answer is Lunar body.
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