16. How far is it to the end of our solar system? (A K2S Question)

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The edge of the solar system is actually hard to define. The solar wind extends outward about three times the orbit of Pluto. At this point the solar wind from our Sun mixes with the solar wind of the interstellar medium. This is called the termination shock. However, most astronomers agree that there is a great swarm of comets around our solar system. The far edge of this is about one light year, or six trillion miles away.


Answer provided by Jim Zebrowski


Image:K2S logosmall.jpg Question and Answer extracted from the book Kids to Space - by Lonnie Schorer