SPACE

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Across
  1. 2. A galaxy-sized cloud of dust and gas; CRAB -----
  2. 4. Forms when a large collapses, no escaping it
  3. 6. The red plant-has evidence of river beds
  4. 7. Our Galaxy
  5. 8. Has a stormy surface with 1200 mph winds
  6. 9. Third rock from the sun
  7. 10. The planet closest to the sun
  8. 11. Group of stars connected to form an image
  9. 15. Cold, barren planet named for the Greek sky god
  10. 17. This comet orbits the sun every 76 years
  11. 19. Biggest planet by far
  12. 22. Streaking object composed of ice and gas
  13. 24. Nearest neighboring galaxy-2.2mil Light years away
  14. 25. A galaxy is composed of millions of -----
  15. 26. Force that attracts two masses to each other
Down
  1. 1. Planet surrounded by rings of icy rock and gas
  2. 3. Shape of the Earth's orbit
  3. 5. The explosion of a large star
  4. 6. A shooting star
  5. 12. The dog star- the brightest star visible from Earth
  6. 13. How distance is measured in space
  7. 14. Chunks of rock, mainly between MARS and Jupiter
  8. 16. Smallest darkest planet found in 1930
  9. 18. One theory of how the universe was created
  10. 20. The smallest piece of a chemical element
  11. 21. Spinning clouds of stars ,dust and gas
  12. 23. A planet's natural satellites, like lo and Europa
  13. 27. Hot,dense, and acidic plant closet to Earth