Space Science

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Across
  1. 3. Something Enceladus & Europa have an abundance of.
  2. 5. What likely stripped Mars's atmosphere.
  3. 7. 5% of Titan's atmosphere
  4. 8. What Earth does around the Sun.
Down
  1. 1. The Meaning of life.
  2. 2. What the Sun does to generate energy.
  3. 3. The first element of the periodic table.
  4. 4. The force applied between all objects that Isaac Newton discovered.
  5. 6. Spinning around a point.