| 1 | In what century did William Herschel discover Uranus? 18th, 20th, 19th, 17th | 18th |
| 2 | In what year was Pluto “demoted” to a be labelled a Dwarf Planet? 2000, 2009, 2006, 2013 | 2006 |
| 3 | In what year was Pluto discovered? 1990, 1960, 1930, 1900 | 1930 |
| 4 | In which century was Venus first discovered? 18th, 20th, 19th, 17th | 17th |
| 5 | In which year did Galieli discover the four major moon of Jupiter? 1810, 1910, 1710, 1610 | 1610 |
| 6 | Ishtar Terra is the northern continent on which planet? Jupiter, Mercury, Venus, Mars | Venus |
| 7 | Janus is a moon of which planet? Neptune, Uranus, Jupiter, Saturn | Saturn |
| 8 | Johann Galle was the discoverer of which planet? Neptune, Uranus, Jupiter, Saturn | Neptune |
| 9 | Johann Schroter spotted 20km Mountains on which planet in 1800? Mars, Mercury, Saturn, Venus | Mercury |
| 10 | Lacus Mortis or the Lake of Death can be found on what body of the solar system? Earth, The Moon, The Sun, Mars | The Moon |
| 11 | Launched in 2015, when did the planned Bepi Colombo reach Mercury? 2019, 2017, 2016, 2018 | 2019 |
| 12 | Lila was the originally proposed name for what? Ceres, Eris, Makemake, Pluto | Eris |
| 13 | Lobate Scarps are a feature of which planet? Saturn, Mars, Venus, Mercury | Mercury |
| 14 | Mare Australe can be found where in the Solar System? Mars, Earth, The Sun, The Moon | The Moon |
| 15 | Mariner 1 and Mariner 2 were sent to visit which planet? Mercury, Jupiter, Venus, Mars | Venus |
| 16 | Mariner 10 in the 1970s was sent to visited which planet? Mars, Mercury, Earth, Neptune | Mercury |
| 17 | Mariner 4 was the first ship to flyby which planet? Venus, Mars, Earth, Mercury | Mars |
| 18 | Maxwell Montes is the highest mountain on which planet? Mars, Jupiter, Mercury, Venus | Venus |
| 19 | Metis and Leda are moons of which planet? Uranus, Neptune, Jupiter, Saturn | Jupiter |
| 20 | Mimas is a moon of which planet? Saturn, Jupiter, Neptune, Uranus | Saturn |
