Space Terminologies

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Across
  1. 2. Theory of the Universe's origins
  2. 7. A proton or neutron
  3. 9. A young star gathering mass from its progenitor
  4. 10. Contains all galaxies, the cosmos, everything as a whole
  5. 11. The creation of a new atomic nuclei
  6. 13. Plural of nucleus
  7. 14. Luminous body of gas, 100 - 400 billion in the galaxy
Down
  1. 1. Called the point of no return, a boundary around a black hole
  2. 3. A system of billions of stars
  3. 4. curved path of a celestial body around a planet or star
  4. 5. Identified on the periodic table
  5. 6. Relating to the cosmos
  6. 8. A planets natural satellite, associated with night.
  7. 12. Relating to stars