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UCI OBSERVATORY VISITOR NIGHTS http://www.physics.uci.edu/~observat Solar System Crossword Puzzle J U R A N U S UI R A N U S U UR A N U S N A S A P L U T O I G S U N A S T E F A R V E N U S A C O M E T S U M E R C N R O P H U R N S T A R Y S P A P O R O T S T A U T S E L E S G A E S M O A R S C O N P E ACROSS DOWN 1. 4. 6. 7. 2. These beautiful features of Saturn are made of small pieces of ice and dust 3. The largest planet in the Solar System 5. The Sun is like a leopard because it often has these 10. Astronomers use the Hubble Space ____ to study planets 12. The Sun is not a planet, but is this 14. This planet could float in a (large!) bathtub 17. We have sent many remote-controlled robots to explore this red planet This planet rotates on its side Planets are made of either rock or ____ This is where astronauts work This was a planet, but is a dwarf planet now 8. This lies at the center of the Solar System 9. These people fly into space on a shuttle 11. Neptune is cold because it is ____ from the Sun 13. This is the second planet from the Sun 15. The moon looks different every night because it goes through ____ 16. These are dirty snowballs with long tails 17. The only other body in the Solar System that humans have walked on is this 18. This is the smallest planet in the Solar System Answers are available at http://www.physics.uci.edu/~observat/sscrossword_answers.pdf Image Credit: IAU / Martin Kornmesser