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Our Solar System Our solar system as we know it is a very mysterious place. Even as we learn about our solar system, the planets that make it up, and all of the stars and other matter that make it up, it is still very hard to come to the reality of what all this actually means. Very few people have the privilege to really understand our solar system and what makes it what it is, these people are astronauts who actually can see it and begin to understand first hand what is going on beyond our world. The sun is the largest body of matter in our solar system. It contains 99.85 percent of all matter in our solar system, which makes it very dominating over all the other planets (Source 1). The picture below gives some idea of just what a big part of the solar system the sun actually is (Source 2}. It shows fire and gases coming from it, and just imagine how small we are compared to the huge ball of gas that makes all life on Earth possible. Besides the sun, there are nine planets that are part of our solar system that all make revolutions around the sun. However, all the planets make these revolutions in different amounts of time. One revolution for Earth is one year, or 365 days. Earth is also the only planet that we kno