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