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What’s Out There?





        Have you ever looked at a clear night sky and wondered
        how many stars are up there? It’s way too many to count!
        Those stars twinkling in the darkness are part of the 200
        billion stars in our Milky Way galaxy. And scientists think
        there could be 100 billion galaxies in the universe, each with
        billions of stars. Far out!




                                                          YOU ALL REVOLVE
                                                            AROUND ME!

                                           Saturn


                        Uranus
                                                       Mercury

         Neptune                     The Sun








               Venus                       Earth
                                                                          Jupiter




                      Mars

                     The sun is at the center of our solar system.
                        Earth and other planets orbit around it.





            Our sun is one of the                 The sun is closer to Earth than
             galaxy’s many, many stars.           other stars, but it’s still 93 million

                                                  miles (150 million km) away.

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