Astronomy

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Across
  1. 5. other element created in the big bang
  2. 6. force that creates solar nebula's
  3. 7. closest planet to the sun
  4. 8. Event that created the universe
  5. 9. only planet in the solar system with known life
  6. 11. Celestial bodies that created other elements beside hydrogen and helium
  7. 12. Solar nebula starts as dust,___,and ice.
  8. 13. process that helps create planetesimals
  9. 14. only other body beside earth with active volcanoes
Down
  1. 1. largest planet in the solar system
  2. 2. rotating disk of dust and gas put together by gravity
  3. 3. early solar system made up of dust,gas,and ice
  4. 4. coldest planet in the solar system
  5. 5. law that states galaxies are moving away from each other
  6. 10. one of the two first elements created in the big bang