Space Crossword

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Across
  1. 3. A Solar _____ occurs when the moon blocks the sun light from Earth.
  2. 7. Theory that the Earth collided with another planet and the debris created the Moon.
  3. 10. First person to walk on the moon.
  4. 12. Where fusion takes place in the sun, and temperatures are over 15 million °C
  5. 13. Contains 100,000s of stars, pulled together in a sphere shape by gravity.
  6. 14. Called the 'red' planet because of its rust colour on the surface.
  7. 17. Contains 100-100,000 stars in a small region of space.
  8. 18. A layer of the Sun that can only been seen during a Solar Eclipse.
  9. 20. A Canadian Commander for the International Space Station.
  10. 22. Most stars are a _____ System.
  11. 25. Our ______ contains eight planets and a medium massed star.
  12. 27. A medium mass star in our Solar System.
  13. 29. Large cloud of dust and gas, also called a 'Star Nursery.'
  14. 31. The _____ System is about 4.3ly away from our Solar System.
  15. 32. A radiation given off by the sun, also gives us sun burns.
  16. 34. A complete orbit of the Earth around the Sun.
  17. 35. Cool spots on the Sun's surface that can be larger than Earth.
  18. 37. Water covers up to 70% of the planet and exists in all three states.
  19. 38. Brightest star in our galaxy, also shares a name with a character in Harry Potter.
Down
  1. 1. A planet with 90x the pressure of Earth.
  2. 2. Gives of 3x more energy than it receives from the Sun.
  3. 4. The largest of galaxies and contains little dust.
  4. 5. Caused because of two galaxies colliding with each other.
  5. 6. There are 100 billion stars in a ______.
  6. 8. Different coloured lights in the sky appearing in the North and South of the Earth.
  7. 9. _____ has a rocky surface like the moon, but also has some smooth areas because of lava flow.
  8. 11. Theory that the Moon was once part of Earth until it was cast out by the rotation.
  9. 15. An ______ unit is used to measure the distance in our Solar System.
  10. 16. Contains 100s-1000s of stars together in a region of space.
  11. 19. One of his conclusions was that almost all the galaxies are moving away from each other.
  12. 21. 10% of all of space is filled with billions of celestial objects. The rest is filled with ________.
  13. 22. Scientists believe these are at the center of all galaxies
  14. 23. A layer of the Sun that oozes Plasma towards the surface.
  15. 24. Two weeks into the Moon's cycle, when no light from the moon is illuminated to the Earth.
  16. 25. Large explosions on the surface of the sun.
  17. 26. The debris and matter from a ______ can form another celestial object.
  18. 28. A _____ is equivalent to 63,000AU.
  19. 30. Our galaxy is called the ________ and stretches across 100,000ly.
  20. 33. Radius of the planet is 71,oookm, and is larger than twice the mass of all the planets combined.
  21. 34. A complete spin of Earth on it's axis.
  22. 36. Planet that's tilted 90° on its axis, making it appear to roll.
  23. 38. Wind speeds at the equator of this planet get up to 1800km/h.
  24. 39. As old arms disappear in a _____ galaxy, new ones appear.