almost 4 1/3 years to reach earth, while it takes light from our sun slightly over eight minutes to reach earth. Wikipedia says the depth of the known universe is currently 46.5 billion light years deep in every direction. Our sun and eight planets make up what we call our solar system, which is part of the Milky Way galaxy, which is made up of an estimated 200-400 billion stars. Our sun is just one of those stars. Think about this: if it might take us roughly 52 million years to drive from one star to another star at 55 mph, imagine how long it would take us to drive to all 200-400 billion stars. And, did you know, if we reduced our Milky Way galaxy down to the size of North America (Canada, the United States and Mexico), our sun and all the planets would fit inside a coffee cup? — If you looked inside that cup, our earth, if you could see it at all, would only be a pinpoint of light. I don’t know about you, but that blows my mind!
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