Quasi stars

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Across
  1. 5. A ________ powers a Quasi star.
  2. 6. Quasi stars are used prove the massive ___ of supermassive black holes..
  3. 7. If these stars existed, one of the biggest mysteries in ___ would be solved
  4. 8. These structures clumped together hydrogen gas enabling the Quasi star to get massive.
Down
  1. 1. Normal stars use ____ to produce energy.
  2. 2. Quasi stars are a ________ concept.
  3. 3. Quasi stars could've been the starters of _____.
  4. 4. Quasi stars form after this happens in their core.