Packing for mars

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Across
  1. 2. The small object that orbits our earth and determines the time
  2. 3. The test flight operation to send a chimpanzee to earths orbit
  3. 5. A all terrain remote controlled vehicle that is dropped onto a planets surface
  4. 7. The first chimp to be sent to space
  5. 8. People sent to space
Down
  1. 1. The national space agency of the united states
  2. 2. The Red planet
  3. 4. the star our planets orbit around
  4. 6. A propelled object that is launched into outerspace
  5. 7. The planet we call home