Packing for Mars

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Across
  1. 4. to fail lots of times
  2. 5. a planet that there trying to go
  3. 6. something to slow you down to the ground
  4. 9. flight 1783
  5. 10. rock
Down
  1. 1. to do science
  2. 2. a big rock
  3. 3. to go down
  4. 7. something that floats with hot air
  5. 8. when the rocket landed