Space Crossword Puzzle

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Across
  1. 7. One of the highly dense rocky planets nearest to the sun
  2. 8. Sun-centered model of the solar system
  3. 9. A small body that gives off gas and dust as it passes close to the sun
  4. 11. An explosive release of energy that comes from the sun and that is associated with magnetic disturbances on the sun's surface
  5. 14. The outer part of a shadow
  6. 15. A natural or artificial body that revolves around a planet
  7. 17. A collection of stars, dust, and gas bound together by gravity
  8. 19. The darkest part of a shadow
  9. 20. The time required for Earth to rotate once on its axis
  10. 21. A loop of relatively cool, incandescent gas that extends above the photosphere
  11. 25. A force of attraction between objects that is due to their masses and distance
  12. 28. A dark area of the photosphere of the sun that is cooler than the surrounding areas and that has a strong magnetic field
  13. 29. An event in which the shadow of one celestial body falls on another
  14. 30. The moment when the sunlight hits both hemispheres of the Earth equally
  15. 31. Growing smaller (Moon Phases)
  16. 32. The time required for Earth to revolve once around the sun
  17. 34. The brightness of a star as seen from Earth
Down
  1. 1. The spin of a body on its axis
  2. 2. Growing bigger (moon Phases)
  3. 3. The sun and all of the planets and other bodies that travel around it
  4. 4. The moment when the sunlight is at a maximum on one hemisphere and a minimum on another hemisphere
  5. 5. A large celestial body that is composed of gas and emits light
  6. 6. Space and all the matter and energy in it
  7. 10. A relatively small, rocky body that travels through space
  8. 12. The path that a body follows as it travels around another body in space
  9. 13. The different appearances of the moon from Earth throughout the month
  10. 16. Earth centered model of the solar system
  11. 18. A large irregular shaped rocky body that orbits the sun
  12. 22. A measure of how bright a star would be if it were seen from a standard distance
  13. 23. A celestial body that orbits the sun, is round because of its own gravity, but has not cleared its orbital path
  14. 24. The distance that light travels in one year
  15. 26. A planet that has a deep, massive atmosphere and is further from the sun
  16. 27. A bright streak of light that results when a meteoroid burns up in Earth's atmosphere
  17. 33. A meteoroid that reaches Earth's surface without burning up completely