Space

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Across
  1. 3. are the other living things in space
  2. 5. is where we are all living in outside the solar system
  3. 6. a large mass of gravity that sucks people in
Down
  1. 1. Giants don't have an actual surface
  2. 2. the things that scientists cannot explain
  3. 3. the only planet with three forms of water
  4. 4. will explode in 5 billion years