EAPS 395, Exam II

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Across
  1. 3. What stars and planets orbit
  2. 6. Europa and Enceladus have this in common
  3. 9. Has phosphine in its atmosphere
  4. 11. Has CHNOPS
  5. 12. Has an oxygen exosphere
  6. 13. Element signaling dramatic events in Earth history
  7. 18. Has a CO2-dominated atmosphere
  8. 19. Has liquid at its surface
  9. 20. May have more than one subsurface ocean
  10. 21. Has water ice
  11. 22. Site of KT impact
  12. 23. Allows us to characterize exoplanet atmospheres
  13. 25. Saw a major increase in biodiversity
  14. 27. Reflectivity
  15. 28. Star system with multiple HZ planets
  16. 29. Hosts the Galilean moons
Down
  1. 1. Proposed phospholipid alternative
  2. 2. Time of Earth's worst extinction
  3. 4. Made of sulfuric acid on Venus
  4. 5. Maybe the consequence of melting
  5. 7. Continent with Siberian Traps
  6. 8. Our Sun
  7. 10. Used for direct imaging of exoplanets
  8. 11. Used to view Earth as if its an exoplanet
  9. 14. Has a large tidal bulge
  10. 15. Only found on sterile worlds
  11. 16. Messed up the Viking experiments
  12. 17. Has a heavily cratered surface
  13. 24. When a planet blocks starlight
  14. 26. Made of iron oxides
  15. 30. Has silicate weathering feedback