Space

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Across
  1. 2. a possible living creature from another planet
  2. 5. used to measure distance in space cause everything is so far away there
  3. 6. a small machine used to explore the surface of some planet
  4. 8. a kind of an asteroid with an icy tail
  5. 10. when the sun is hidden behind the moon and we can see it black
  6. 11. the synonym of "clever"
  7. 12. having big effect or influence OR when we reaaly need this thing - it is i... for us
Down
  1. 1. to start a rocket or another spacecraft from earth when sending it to space
  2. 3. travelling through an unfamiliar area (like space) to study it and find out what it is like
  3. 4. to become impossible to see or find
  4. 7. when a star "falls down" from the sky
  5. 9. science that studies space, its objects and laws