Solar System

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Across
  1. 2. What comes after 'solar' for the name of a burst of violent activity on the surface of the sun?
  2. 4. What is a giant cloud of dust and gas in space and exist in formation of solar system?
  3. 5. Planet which locates 0.9 billion miles from the Sun?
  4. 8. junk, What is the term for any man-made object orbiting Earth ?
  5. 9. What is the comet's head called?
  6. 11. , Planet in the solar system that is made of gas?
  7. 12. What core is mercury made up of?
  8. 14. What forms first in the early stages of solar system formation?
  9. 15. Meteoroids that pass through the atmosphere and hit Earth's surface are called?
Down
  1. 1. Which planet is named after the Roman goddess of love and beauty?
  2. 3. Which planet do astronomers sometimes call a failed star?
  3. 6. What is the name for one celestial body passing in front of another?
  4. 7. When a shooting star is long lasting, what is it called?
  5. 10. Near earth asteroids are divided into 3 groups which are Aten, Apollo and?
  6. 13. Asteroid forms icy counterpart which is?