The Milky Way is a spiral galaxy type so it has arms sort of like an octopus. We live in the Milky Way
Answer:
when you get to fall for free
Explanation:
The question is poor. Light doesn't refract on its way THROUGH anything. It refracts at the boundary BETWEEN two different media. The effect is greatest where the ratio of the speeds of light in the two media is greatest. On your list, that would be at the boundary between air or space and glass.