Page 9 - Demo

8%u201cThere are some interesting facts about our solar system we should know. So, let%u2019s pay close attention,%u201d said Mrs. Diana. Earth is a big place, but it is quite tinyin the solar system. We need 1.3 million Earth-sized planets to fill up the Sun.The Solar System started about 4.6 billion years ago from a big cloud of gas and dust named the solar nebula.Our solar system belongs to the Milky Way. The Milky Way has lots and lots of stars, like between 250 and 500 billion. In this way, there are more stars than there are people on Earth, at least 30 times more.The Sun is 93 million miles from the Earth, but the sunshine from the Sun reaches Earth in just 8 minutes.There are 181 moons in the Solar System