5 Space Voyager moon

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Earth's Moon Look up! What is that in the sky? It is the moon. It is the brightest thing in our night sky.

Why is it so bright? It reflects the sun's light.

The moon has phases. It looks full. This is when the sun shines fully on the moon.

Now it is a crescent. Only part of it is lit by the sun.

The moon orbits Earth. It has its own gravity. It pulls on the oceans. It makes tides.