Space Vocabulary

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Across
  1. 4. the boundary black holes; the point of no return
  2. 6. a curved path of a celestial body around a planet, star or moon
  3. 8. formation of new atomic nuclei
  4. 10. widely believed theory of the universes origins
  5. 12. celestial body that orbits around a star
  6. 14. synonymous to celestial; similar to cosmos
  7. 15. a proton of neutron generally in the nucleus
  8. 16. microwaves and radio waves are forms of this
Down
  1. 1. found on the periodic table
  2. 2. Referred to as the cosmos
  3. 3. cloud of gas and dust developing into a star
  4. 5. a self luminous stellar body
  5. 7. has a black hole in its center
  6. 8. Plural to nucleus
  7. 9. visible clouds of dust and gas in interstellar space
  8. 11. relating to stars/star
  9. 13. natural satellite