UNIVERSE

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Across
  1. 3. THERE ARE BILLIONS OF ME.
  2. 5. THE COMET THAT YOU CAN SEE ONCE EVERY 76YEARS
  3. 6. SPCIAL NAME GIVEN TO THE SHAPES OF OUR SATELLITE.
  4. 7. I AM USED TO STUDY THE DISTANT REACHES OF THE SOLAR SYSTEM
  5. 9. I AM IMAGINARY BUT VERY USEFUL.
  6. 10. I AM RESPONSIBLE FOR YOUR DAY AND NIGHT.
Down
  1. 1. ANOTHER NAME FOR HEAVENLY.
  2. 2. I AM THE OUTERMOST PLANET DISCOVERED SO FAR
  3. 4. I AM IMAGINARY , BUT I CONNECT THE NORTH AND SOUTH POLE
  4. 8. I AM ONE OF THE COLOURS THAT STARS HAVE.