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Across 1. The first planet is the ______ planet, because it is nearest to the sun 4. The Space Shuttle lifts off from the _____________ pad 6. Saturn is the second-largest ______ in the solar system 7. The Earth takes 365 days to ______ the Sun 9. A scientist who studies stars and planets 11. The planet we live on is called _______ 12. A Russian astronaut is called a ______________ 13. Venus is the ______ closest planet to the sun 14. The ______ is the biggest thing in the solar system 16. Our galaxy is called the _____________ 18. An ______________ is someone who goes into space 19. The Space __________ transports astronauts and cargo into space 22. The Earth is ____________ than the moon 26. An instrument that makes distant objects look larger and closer 27. Jupiter is the ___________ planet in the solar system 28. The sun is _______ than other stars

Down 1. The moon is lighter than the Earth. Earth is _______ than the moon 2. _______ is also called the blue planet 3. There are eight ________ in the solar system 5. Captain Yang Liwei became the ______ Chinese man in space 8. Neil Armstrong was the first man to land on the _______ 9. All the gases which surround a star or a planet 10. _______ is the smallest planet in our solar system 14. Yuri Gagarin was the first man in ________ 15. Stars and solar systems grouped together form a ____________ 16. A piece of stone or metal from space that falls to Earth's surface 17. An object that moves around a larger object 20. The Earth is heavier than the moon. The moon is __________ than the Earth 21. An _________ is a rocky space object of varying size 23. The sun is the _______ thing in the solar system 24. It takes more than one astronaut to fly a space shuttle. Each mission has its own __________________ 25. A mass of material with a long tail that travels around the Sun