Earth and Space

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Across
  1. 3. Two hydrogen atoms fuse to form
  2. 6. Planets made of rocks
  3. 10. Closest planet to the sun
  4. 11. Launched the Hubble Teloscope
  5. 14. The big bang started with a
  6. 15. A dwarf planet
  7. 16. Gas clouds in space
  8. 17. Planets made of gas
  9. 18. The galaxy earth is in
  10. 19. Small rocky objects in space
Down
  1. 1. Furthest planet to the sun
  2. 2. Galaxies are moving away from each other, and the farther away the galaxy is, the faster it is moving away from us
  3. 4. Our sun is a
  4. 5. collection of hundreds of billions of Stars
  5. 7. Made of dust and ice
  6. 8. A meteoroid that enters earth's atmosphere
  7. 9. A meteor that lands on earth
  8. 12. Large and rocky object that orbits the sun
  9. 13. A red giant has used up all its...