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. What is the name of the largest volcano on Venus? a) Mauna Kea b) Olympus Mons c) Maxwell Montes d) Maat Mons 2 / 30 2. What is the name of the spacecraft that discovered geysers erupting from beneath the icy surface of Saturn's moon, Enceladus? a) Cassini b) New Horizons c) Juno d) Voyager 2 3 / 30 3. Which space probe was the first to fly by Jupiter, Saturn, Uranus, and Neptune, providing detailed data on these gas giants and their moons? a) Voyager 1 b) Voyager 2 c) Pioneer 10 d) Pioneer 11 4 / 30 4. What characteristic makes Mercury unique among the terrestrial planets? a) Its large number of moons b) Its extremely tilted axis c) Its large iron core relative to its size d) Its thick atmosphere 5 / 30 5. What is the name of the second-largest moon of Pluto? a) Styx b) Nix c) Kerberos d) Hydra 6 / 30 6. What is the name of the iconic long-lasting storm on Jupiter? a) Great White Spot b) Great Blue Spot c) Great Green Spot d) Great Red Spot 7 / 30 7. Which Mars rover was launched in 2011 and has been exploring Gale Crater since its landing in 2012? a) New Horizons b) Juno c) Curiosity d) Opportunity 8 / 30 8. What is the most notable feature of Uranus's atmosphere? a) Giant red spot b) Hexagonal storm c) Massive hurricane d) Strong ammonia odor 9 / 30 9. Which ground-based observatory is operated by the European Southern Observatory (ESO) and consists of four individual telescopes located in Chile? a) Hubble Space Telescope b) James Webb Space Telescope c) Keck Observatory d) Very Large Telescope (VLT) 10 / 30 10. Which moon of Jupiter is the most heavily cratered body in the Solar System, indicating its ancient surface? a) Io b) Europa c) Ganymede d) Callisto 11 / 30 11. 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 12 / 30 12. Which space probe provided the first close-up images of Jupiter and Saturn? a) Voyager 1 b) Voyager 2 c) Pioneer 10 d) Pioneer 11 13 / 30 13. What is the name of the hexagonal cloud pattern observed at Saturn's north pole? a) Saturn's Hexagon b) Venus' Vortex c) Jupiter's Great Red Spot d) Mars' Dust Storm 14 / 30 14. What is the name of the process by which rocks are transformed into new types of rocks through heat and pressure? a) Erosion b) Weathering c) Deposition d) Metamorphism 15 / 30 15. How many major rings does Saturn's ring system consist of? a) 2 b) 5 c) 7 d) 9 16 / 30 16. What is the primary component of Eris's surface? a) Water ice b) Methane ice c) Nitrogen ice d) Ammonia ice 17 / 30 17. What is the name of the largest feature on Pluto's surface, which is a heart-shaped region? a) Tombaugh Regio b) Sputnik Planitia c) Cthulhu Regio d) Lowell Regio 18 / 30 18. Which moon of Saturn exhibits extensive cryovolcanism, with geysers erupting from its south polar region? a) Titan b) Enceladus c) Rhea d) Dione 19 / 30 19. What is the name of the spacecraft that orbited Saturn and its moons, providing detailed observations and data? a) Galileo b) Voyager c) Cassini d) Juno 20 / 30 20. Which moon of Jupiter has the highest density among the Galilean moons, indicating a significant amount of rocky material in its composition? a) Io b) Europa c) Ganymede d) Callisto 21 / 30 21. What is the name of a meteoroid that survives its passage through Earth's atmosphere and strikes the ground? a) Meteorite b) Meteoroid c) Meteor d) Comet 22 / 30 22. What is the name of the phase of the Moon when it is fully illuminated as seen from Earth? a) New Moon b) First Quarter c) Full Moon d) Third Quarter 23 / 30 23. What is the average surface temperature on Venus? a) 100°C b) 250°C c) 460°C d) 800°C 24 / 30 24. What is the term for the phase of the Moon when only a small portion of its surface is illuminated, appearing as a thin crescent? a) Full Moon b) New Moon c) Waning Gibbous d) Waxing Crescent 25 / 30 25. What is the approximate diameter of Uranus? a) 30,000 kilometers (18,600 miles) b) 50,000 kilometers (31,000 miles) c) 70,000 kilometers (43,500 miles) d) 90,000 kilometers (56,000 miles) 26 / 30 26. Which space probe provided the first close-up images of the asteroid Vesta and the dwarf planet Ceres in the asteroid belt? a) Voyager 1 b) Voyager 2 c) Pioneer 10 d) Dawn 27 / 30 27. What is the estimated total number of icy bodies in the Oort Cloud? a) Thousands b) Millions c) Billions d) Trillions 28 / 30 28. 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 29 / 30 29. What is the name of the valley network system on Mars that suggests past water erosion? a) Valles Marineris b) Elysium Mons c) Hellas Planitia d) Noctis Labyrinthus 30 / 30 30. What is the term for the layer of air surrounding the Earth that sustains life and protects it from harmful radiation? a) Atmosphere b) Hydrosphere c) Biosphere d) Lithosphere Please provide accurate information so we can send your Achievement Certificate by mail. NameEmailPhone Number Your score is Share your achievement! LinkedIn Facebook Twitter 0% Restart Test Please provide your feedback. Thank you for your valuable feedback. Send feedback Buy Solar System MCQ PDF for Offline Study