Astronomy Cross Word

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Across
  1. 2. Scientists believe this theory as to how the universe was created
  2. 4. fusion How do stars produce their own energy?
  3. 5. Planets reflect _____ from the sun
  4. 7. Largest stars, bigger than the sun
  5. 9. A cloud of dust and gas in outer space
Down
  1. 1. Artificial body placed in orbit around a planet in order to collect information for communication
  2. 3. From earth, what is the brightest celestial object?
  3. 6. The galaxy that earth is in
  4. 8. The planets of our solar system orbit around this