Unit Vllll : Beyond Earth

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Across
  1. 3. Outer space debris attracted to Earth’s gravity
  2. 8. Asteroids that cross but spend most of their time outside Earth’s orbit
  3. 9. A long visible, glowing tail that forms when the comet is near the sun
  4. 10. It is composed of the sun and its system of eight planets
  5. 14. The brightest asteroids composed of nickel and iron
  6. 15. The most popular and famous short-period comet
  7. 17. During the Perseid meteor shower, the Earth passes through the orbit of this comet
  8. 21. How Johannes Kepler described the orbit of planets
  9. 22. Asteroids located near Jupiter’s Orbit
  10. 24. A dutch astronomer; “Oort Cloud” was named after him
  11. 28. The belt where Asteroids mostly originate from
  12. 29. The closest distance from the sun
  13. 31. The clouds where most comets originate from
  14. 32. Miniature planets or planetoids
  15. 34. “Dirty Snowballs”
Down
  1. 1. A periodic phenomenon.
  2. 2. Meteor showers coming from the debris of the asteroid 2003EH1
  3. 4. The constellation where the Orionid meteor showers originate
  4. 5. A big group of stars
  5. 6. Composed of ice, frozen gas, rocks, and dust
  6. 7. Dark in color because they are composed of carbon
  7. 11. They are hard to see because they reflect little light
  8. 12. A spiral galaxy; Our home
  9. 13. The biggest asteroid
  10. 15. Model that detonates that the eight planets of the solar system revolve around the sun
  11. 16. Meteors when they hit the Earth’s ground
  12. 18. Occurs during October when Earth passes through the orbit of Halley’s Comet
  13. 19. A periodic astronomical event that happens meteors enter Earth’s gravity
  14. 20. The amount of light reflected by a planet or any celestial objects
  15. 23. A large bright cloud of dust and gas that surrounds the nucleus
  16. 25. The farthest distance from the sun
  17. 26. “King of Meteor Showers.”
  18. 27. Originates from the constellation Perseus
  19. 30. coined the term “asteroid “ and discovered the planet Uranus
  20. 33. Asteroids that approach but do not cross Earth’s orbit