F6 Question space

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Across
  1. 3. place in space where gravity pulls so much that even light can not get out
  2. 5. elliptical,irregular,spiral is.....of galaxies
  3. 6. asteroid orbit the
  4. 7. a system of a Sun and the objects that move around it
  5. 10. made from stellar dust,gas,starts and solar system
  6. 11. closest planet to the sun
Down
  1. 1. all of space and everything contained within it
  2. 2. ceres covered with
  3. 4. objects made from rock that orbit the sun
  4. 6. made from oxygen, carbon, iron, silicon and magnesium
  5. 8. gas giant made up mostly of hydrogen and helium
  6. 9. have 1500000000000 times the mass of sun