Time Machine

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Across
  1. 2. a particular place or position
  2. 3. to go on forever without stopping
  3. 5. to go from one place to another, typically used to describe vacation
  4. 6. all matter and space considered as a whole...the whole _________
Down
  1. 1. a hypothetical group of multiple universes
  2. 4. the opposite of closed