space terms

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Across
  1. 2. A bowl-shaped depression caused by a comet or
  2. 4. year The distance that a ray of light travels in
  3. 7. A cloud of glowing gases that surrounds a
  4. 8. rock.
  5. 11. The length of time it takes a planet to spin around
  6. 12. The third planet from the Sun
  7. 14. from Earth.
  8. 15. clusters and other matter
  9. 16. A star’s brightness
  10. 18. the Moon.
  11. 19. year
  12. 20. star A star which is larger than the Sun.
  13. 21. surrounding a relatively small core.
  14. 24. caused when our planet passes between the Sun
  15. 25. A darkening of the Moon, as viewed from
  16. 28. hovering just above the Sun’s surface.
  17. 29. The closest planet to the Sun
  18. 30. asteroid. On geologically active moons and planets.
  19. 31. The force of attraction that pulls a smaller
Down
  1. 1. toward a more massive object
  2. 3. The imaginary line around the middle of a
  3. 5. giant A type of planet which is made up of gas and
  4. 6. hemisphere.
  5. 9. The outermost part of the Sun’s atmosphere.
  6. 10. dividing its northern hemisphere from its
  7. 11. A star which is smaller than the Sun.
  8. 13. Half of a planet or moon
  9. 17. A group of stars that can be seen as a
  10. 22. colliding with the surface of a planet, moon,
  11. 23. The outer part of a planet or moon, made mostly
  12. 26. Small, rocky object orbiting the Sun
  13. 27. The star at the center of our solar system
  14. 31. A group of stars, nebulae, star clusters,