Space

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Across
  1. 3. A distinct body of interstellar clouds
  2. 5. when the moon seems red for a period of time.
  3. 6. A highly magnetized compact star
  4. 7. The darkest exoplanet
Down
  1. 1. a body of mass, gas or other stuff. big.
  2. 2. the fuel of a star exploding
  3. 4. a planet outside of our solar system.