space

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Across
  1. 1. the cosmic explosion
  2. 5. the largest planet and the 5th from the sun
  3. 6. a program of space flights to land a man on the Moon
  4. 7. the smallest component of an element
  5. 8. the wide blue yonder
Down
  1. 2. Cosmonauts
  2. 3. A machine to carry a crew into interstellar space
  3. 4. giant planet with a ring of ice particles