PHYS 106

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Across
  1. 1. - dusty snowball with a coma and a tail
  2. 5. - trans-Neptunian objects that orbit in 2:3 mean-motion resonance with Neptune
  3. 8. - rocky minor bodywith irregular shapes
  4. 9. - Pluto's largest moon, almost as large as Pluto itself
  5. 11. - Where short-periodod comets come from
  6. 14. - only spaceship to fly by and observe Uranus and Neptune
  7. 16. - only planet discovered through mathematical calculations
  8. 17. - Name of the cloud where long-period comets come from
  9. 18. - objects that around shaped, orbit the Sun, but haven't cleared their orbit
Down
  1. 2. - parts of asteroids/comets that entered Earth’s atmosphere
  2. 3. - Galilean moon that is furthest away from its planet
  3. 4. - once a meteor lands on Earth, it is a...
  4. 6. - the largest moon in the Solar System
  5. 7. - planet with an axis tilt larger than 90 degrees
  6. 10. - only large moon in the solar system that orbits its planet backwards (opposite to the planets rotation)
  7. 12. - the most volcanically active object in the Solar System
  8. 13. - “doughnut”-shaped disk beyond Neptune's orbit
  9. 15. - discovered the 4 most famous moons of Jupiter