Astronomy- Big Bang

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Across
  1. 2. What occurs when antimatter collides with matter?
  2. 4. Hole Era that star-Like objects remained as black holes.
  3. 7. In what era have stars blown up and collapsed into black holes?
  4. 8. First Atom to be formed was _______?
  5. 11. Massive spheres held together by its own gravity are _____?
  6. 13. What is the vacuum energy that emerges in the universe to overtake the pull of gravity from matter?
  7. 14. The moment before creation (When space and time has yet to exist)
  8. 15. Groups of stars became the earliest _______?
Down
  1. 1. The Last era where the protons decay and black holes evaporate.
  2. 3. A type of energy that existed in the vacuum of space that was mobilized was _______?
  3. 5. Second Atom to be formed was ________?
  4. 6. Particles were created with ______?
  5. 9. What was Formed in the last step to the Big Bang?
  6. 10. The pull of ________ has exerted its influence on early universe.
  7. 12. Which Law discovered that the universe was expanding?