Let's Get Safe... Space Safe!

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Across
  1. 3. we need 2 feet of this between us and the computer
  2. 8. Comes after "Think"...
  3. 9. we should do these every 30 minutes
  4. 10. Where we should be seated during our sessions!
  5. 12. One of Earth's neighbors
  6. 13. He herds space cows
Down
  1. 1. Earth's other redder neighbor
  2. 2. Astronauts need to wear this on their heads when they go to space
  3. 3. Twinkling lights in the night sky
  4. 4. the planet where we live
  5. 5. You should always have a bottle of this
  6. 6. The kind of space we have for ourselves
  7. 7. The "expectation" that comes after "Be safe"
  8. 11. What is this puzzle about?