Space

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Across
  1. 4. Transports crews to the International Space Station and returns them to Earth after their mission
  2. 5. The gas we breathe in to live
  3. 7. To cause explosion at impact
Down
  1. 1. Production of thrust to push an object forward
  2. 2. A rope to hold on to another object
  3. 3. The load carried by a vehicle exclusive of what is necessary for its operation
  4. 6. Box of medical supplies