A friendly science diagram of the changing moon phases: eight moon discs arranged in a horizontal arc, progressing from new moon through crescent, first quarter and gibbous to full moon and back symmetrically to waning crescent, each disc showing a clean light and shadow transition and fine crater texture. A pale blue curved arrow across the centre suggests the Moon orbiting Earth, with a small Earth motif and a deep blue star field below. The palette is deep blue, warm white and soft gold, the layout has generous spacing, and the diagram reads clearly as a teaching visual, with no text anywhere in the image.