Black Holes

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  1. 4. Black holes are really really_ and old stars.
  2. 8. The speed of light.
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  1. 1. The centre of a black hole.
  2. 2. People who study space and stars.
  3. 3. The substance that fights a stars gravity.
  4. 5. Astronomers think that black holes may explain the _
  5. 6. You can’t see the _ of a black hole.
  6. 7. You can’t see a _ hole.