Scale of Universe

For many lay persons without having rigorous background in science, contemplating the vastness of universe using the traditional measurement units like "light years" and other more obscure terminologies may prove to be a hindrance understanding immensity of our universe. The following article explains it using known analogies, like a ping pong ball as sun, tip of a ball-point pen as our earth, and there is a 15 feet difference between them. The next star closest to sun is Proxima Centauri, which is by analogy is about 230 km away from the "ball" of sun. How about Milky Way, Andromeda and billions of other galaxies, how far are they from each other? Go to the link below to get a glimpse.

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Scale of Universe