lesson 3 and 4

1234567891011
Across
  1. 2. is a large cloud of gas
  2. 4. is a group of stars
  3. 6. bang theory states that the universe formed in an instant
  4. 7. dwarf blue-white core
  5. 8. first in Greek
  6. 10. a explosion
  7. 11. all of the space and everything in It
Down
  1. 1. a more accurate scale of the entire solar system
  2. 3. a bright light
  3. 5. the brightness on a star
  4. 9. a brightness seen from earth