Home» Online Test » Astronomy » Solar System Online Test 0% Sorry, time's up. To complete the online test, please restart it. Created by Vikash chaudhary This 'Solar System Online Test' covers questions across all the topics related to our Solar System. Get fresh, new questions in each attempt. Total Questions: 30 Time Allotted: 30 minutes Passing Score: 50% Randomization: Yes Certificate: Yes Do not refresh the page! 👍 All the best! 1 / 30 1. Which dwarf planet was the first to be discovered beyond Pluto's orbit in the Kuiper Belt? a) Eris b) Haumea c) Makemake d) Ceres 2 / 30 2. What is the largest moon of Pluto? a) Charon b) Styx c) Nix d) Kerberos 3 / 30 3. Which space probe carried a golden record containing sounds and images of Earth, intended as a message to potential extraterrestrial civilizations? a) Voyager 1 b) Voyager 2 c) Pioneer 10 d) Pioneer 11 4 / 30 4. What is the region called where the solar wind slows down and merges with the interstellar medium? a) Heliosphere b) Magnetosphere c) Termination Shock d) Photosphere 5 / 30 5. What is the name of the robotic rover currently exploring the surface of Mars? a) Voyager b) Curiosity c) Opportunity d) Spirit 6 / 30 6. Which moon of Uranus is known for its unusual, roughly spherical shape, with a diameter about one-third that of our Moon? a) Titan b) Enceladus c) Miranda d) Triton 7 / 30 7. What is the name of the region in the Solar System where long-period comets originate, extending to the outermost reaches of the Sun's gravitational influence? a) Kuiper Belt b) Oort Cloud c) Asteroid Belt d) Scattered Disc 8 / 30 8. Which ground-based telescope is located in Hawaii and is one of the world's premier observatories for optical and infrared astronomy? a) Hubble Space Telescope b) James Webb Space Telescope c) Keck Observatory d) Chandra X-ray Observatory 9 / 30 9. What is the name of the largest volcano in the solar system, located on Mars? a) Mount Everest b) Olympus Mons c) Mount Kilimanjaro d) Mauna Kea 10 / 30 10. What is the name of the volcanic moon of Jupiter known for its intense volcanic activity? a) Europa b) Callisto c) Ganymede d) Io 11 / 30 11. Which asteroid is the target of the Hayabusa2 mission, which aimed to return a sample to Earth? a) Ryugu b) Bennu c) Itokawa d) Mathilde 12 / 30 12. What is the name of the prominent gap in Saturn's rings, caused by the gravitational influence of the moon Mimas? a) Encke Gap b) Cassini Division c) Keeler Gap d) Roche Division 13 / 30 13. What is the name of the largest moon of Saturn? a) Enceladus b) Titan c) Mimas d) Rhea 14 / 30 14. What is the state of Mercury's atmosphere? a) Thick and cloudy b) Thin and composed mainly of oxygen c) Almost nonexistent and composed of trace elements d) Similar to Earth's atmosphere 15 / 30 15. Which moon of Saturn is the only moon in the Solar System known to have a dense atmosphere, primarily composed of nitrogen? a) Titan b) Enceladus c) Miranda d) Triton 16 / 30 16. What is the main composition of objects found in the Kuiper Belt? a) Rock and metal b) Ice and rock c) Gas and dust d) Hydrogen and helium 17 / 30 17. Which space probe was the first to visit Jupiter and later became the first human-made object to leave the Solar System? a) Voyager 1 b) Voyager 2 c) Pioneer 10 d) Pioneer 11 18 / 30 18. Which spacecraft provided the first close-up images and data of Uranus and its moons? a) Voyager 1 b) Voyager 2 c) Cassini d) New Horizons 19 / 30 19. What is the name of the moon of Saturn with a distinctive two-toned appearance, caused by impact cratering? a) Titan b) Enceladus c) Iapetus d) Hyperion 20 / 30 20. Which moon of Saturn is believed to have a subsurface ocean beneath its icy crust? a) Enceladus b) Titan c) Mimas d) Dione 21 / 30 21. What is the name of the largest moon of Neptune? a) Triton b) Proteus c) Larissa d) Naiad 22 / 30 22. What geological feature on Mercury suggests it has contracted over time? a) Lava plains b) Scarps or cliffs c) Impact basins d) Volcanic vents 23 / 30 23. What is the name of the phenomenon where tidal forces cause a celestial body to become elongated along the axis pointing toward the attracting body? a) Tidal heating b) Tidal friction c) Tidal stretching d) Tidal locking 24 / 30 24. Which elements in Earth's atmosphere are responsible for the green and red colors in auroras? a) Hydrogen and helium b) Carbon and nitrogen c) Oxygen and nitrogen d) Sulfur and chlorine 25 / 30 25. What is the approximate length of one day on Venus (one complete rotation)? a) 24 hours b) 58.6 Earth days c) 243 Earth days d) 365 Earth days 26 / 30 26. Which planet in the Solar System is known for its massive dust storms that can engulf the entire planet for months? a) Jupiter b) Saturn c) Mars d) Venus 27 / 30 27. Which layer of the Earth's atmosphere contains the ozone layer? a) Troposphere b) Stratosphere c) Mesosphere d) Thermosphere 28 / 30 28. Which moon of Uranus is known for its heavily cratered surface and bright, icy terrain? a) Oberon b) Miranda c) Ariel d) Umbriel 29 / 30 29. What geological feature on Mars is believed to be the largest volcano in the Solar System by volume and is named after the Roman god of war? a) Olympus Mons b) Tharsis Montes c) Elysium Mons d) Pavonis Mons 30 / 30 30. What is the name of the hexagonal cloud pattern observed at Saturn's north pole? a) Saturn's Hexagon b) Jupiter's Great Red Spot c) Venus' Vortex d) Uranus' Rings Please provide accurate information so we can send your Achievement Certificate by mail. NameEmailPhone Number Your score isShare your achievement! LinkedIn Facebook 0% Restart Test Please provide your feedback. Thank you for your valuable feedback. Send feedback Buy Solar System MCQ PDF for Offline Study