Moon

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Across
  1. 2. Huge round hollow on the moon’s surface
  2. 4. India’s first space satellite
  3. 7. Earth’s closest neighbour in space
  4. 8. Colour of the moon’s surface
Down
  1. 1. Moon’s is 1/6th of that of Earth’s
  2. 3. Any object which revolves around a planet
  3. 5. First country to send an artificial satellite in space
  4. 6. person who goes to space