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Part of the Moon stands out against the blackness of space. Its surface is marked with many craters of different sizes. The craters are mostly on the left and bottom. The upper right portion of the Moon's surface is much smoother.

At the Edge of Light

A portion of the Moon’s far side is seen along the terminator—the boundary between lunar day and night—where low-angle sunlight casts long shadows across the surface.

Image Credit: NASA

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