space

12345678
Across
  1. 5. the largest planet and the 5th from the sun
  2. 6. a program of space flights to land a man on the Moon
  3. 7. BANG the cosmic explosion
  4. 8. the wide blue yonder
Down
  1. 1. Cosmonauts
  2. 2. A machine to carry a crew into interstellar space
  3. 3. the smallest component of an element
  4. 4. giant planet with a ring of ice particles