Friendly educational science infographic diagram, horizontal 4:3, on a deep navy night background. Three clear modules connected by curved arrows show how an aurora forms: on the left, a glowing sun releases a stream of charged particles; in the middle, Earth's magnetic field curves like a shield and guides the particles toward the poles; on the right, green and violet aurora curtains glow above a snowy mountain ridge and a small pine forest. Only three short clean readable English labels appear: Solar Wind, Magnetosphere, Aurora Glow. Flat vector illustration style, soft glow, generous spacing, no paragraphs, no other text, no logos, no watermark.