U7R2

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Across
  1. 2. everything that exists, including all the stars and planets in space
  2. 4. be different from each other
  3. 5. a device scientists use to learn about space
  4. 8. how hot or cold something is
Down
  1. 1. how far two things are from each other
  2. 3. centimeter, inch, degree, minute...
  3. 6. where the planets and stars are
  4. 7. go around