Space

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Across
  1. 2. Mercury and Venus don't have any of these
  2. 4. They send data from space via radio.
  3. 8. The first one was invented by a dutch eyeglass maker in 1608.
  4. 10. It acts as a small spaceship,providing oxygen to breath.
  5. 11. They do not have enough mass (or gravity) to have a clear orbit from debris
Down
  1. 1. They are designed to explore and test the surface,and send information back to earth.
  2. 3. They are electronic devices put in orbit around earth.
  3. 5. A system that is used for transporting materials and astronauts into space.
  4. 6. They burn up as they enter Earths atmosphere
  5. 7. Has long dust and gas tail.
  6. 9. They are small rocky celestial bodies that orbit the sun