| 100% | PLUTO | 5 | Dwarf planet that's near Neptune |
| 60% | ERIS | 4 | Dwarf planet that's bigger than Pluto |
| 55% | PLUTO | 5 | Dwarf planet that's only about half the width of the United States |
| 55% | PLUTO | 5 | Dwarf planet that shares its name with Mickey Mouse's dog |
| 50% | PLUTO | 5 | Dwarf planet beyond Neptune |
| 50% | PLUTO | 5 | Dwarf planet past Neptune |
| 50% | ERIS | 4 | Dwarf planet beyond Neptune |
| 47% | PLUTO | 5 | Dwarf planet that lent its name to the radioactive chemical element, Plutonium |
| 45% | PLUTO | 5 | Planet that was reclassified as a dwarf planet in 2006 |
| 43% | EARTH | 5 | Planet that's 71% water |
| 42% | MARS | 4 | Planet that's fourth from the sun |
| 41% | CERES | 5 | Dwarf planet in the asteroid belt that lent its name to the lanthanide element, Cerium |
| 40% | URANUS | 6 | Planet that's often the butt of a joke |
| 40% | MARS | 4 | Planet that's about half the diameter of Earth |
| 40% | EARTH | 5 | Planet that's the third closest to the sun |
| 40% | MARS | 4 | Planet that's being explored by two NASA rovers |
| 39% | URANUS | 6 | Planet that's more distant from the Sun than Saturn |
| 39% | CERES | 5 | Dwarf planet orbited by NASA's Dawn in 2015 |
| 38% | TATOOINE | 8 | "Star Wars" planet that's home to womp rats |
| 38% | ANKLE | 5 | Joint that's near the foot |
| 38% | MIT | 3 | University that's near Harvard: Abbr. |
| 38% | PLUTO | 5 | Dwarf planet photographed by NASA's New Horizons in 2015 |
| 37% | ERIE | 4 | Pennsylvania city that's near Cleveland |
| 37% | PLUTO | 5 | Dwarf planet |
| 37% | CERES | 5 | Dwarf planet |
| 37% | HOTH | 4 | Icy sci-fi planet that’s home to wampas and tauntauns |
| 36% | MIT | 3 | Caltech rival that's near Boston: Abbr. |
| 36% | HIP | 3 | Joint that's found near the waist |
| 36% | ERIE | 4 | Great Lake that's near Niagara Falls |
| 36% | MIT | 3 | University that's located near Harvard: Abbr. |