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 primary component of Ceres's surface? a) Rock b) Ice c) Iron d) Silicates 2 / 30 2. Which moon of Jupiter is known for its highly active surface geology, with extensive cryovolcanism and icy geysers? a) Ganymede b) Europa c) Io d) Callisto 3 / 30 3. Which moon of Neptune is the largest and seventh-largest moon in the solar system? a) Nereid b) Proteus c) Triton d) Larissa 4 / 30 4. Which dwarf planet is known for its highly eccentric orbit that takes it far beyond the orbit of Pluto? a) Eris b) Haumea c) Makemake d) Ceres 5 / 30 5. What is the primary component of Uranus's atmosphere? a) Hydrogen b) Helium c) Methane d) Ammonia 6 / 30 6. What is the name of the largest moon in the Solar System, which orbits the gas giant Jupiter and is larger than the planet Mercury? a) Titan b) Ganymede c) Io d) Europa 7 / 30 7. How does the temperature on Mercury's surface vary? a) It is consistently hot b) It is consistently cold c) It varies widely between day and night d) It is mild and stable 8 / 30 8. What is the name of the robotic rover currently exploring the surface of Mars? a) Voyager b) Curiosity c) Opportunity d) Spirit 9 / 30 9. Where is the Asteroid Belt located in the Solar System? a) Between Earth and Mars b) Between Mars and Jupiter c) Between Jupiter and Saturn d) Between Saturn and Uranus 10 / 30 10. 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 11 / 30 11. What is the heliosphere? a) The Sun's core b) The region around the Sun dominated by the solar wind c) A layer within the Sun d) A planet orbiting close to the Sun 12 / 30 12. Which meteorite is known for containing abundant organic compounds and is believed to be a remnant of the early Solar System? a) Allende b) Hoba c) Canyon Diablo d) Tunguska 13 / 30 13. What type of rock is formed from the cooling and solidification of magma or lava? a) Sedimentary b) Metamorphic c) Igneous d) None of the above 14 / 30 14. What is the name of the meteorite that is believed to have brought organic molecules and water to Earth, potentially contributing to the origin of life? a) Allende b) Hoba c) Canyon Diablo d) Tunguska 15 / 30 15. What is the name of the dark, circular feature on the Moon's surface, formed by a volcanic eruption or impact? a) Crater b) Rille c) Mare d) Highland 16 / 30 16. Which space telescope is famous for its stunning images of distant galaxies, nebulae, and star clusters? a) Hubble Space Telescope b) James Webb Space Telescope c) Keck Observatory d) Chandra X-ray Observatory 17 / 30 17. 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 18 / 30 18. 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 19 / 30 19. Which moon of Jupiter was discovered by Galileo Galilei in 1610, making it one of the first objects observed in orbit around another planet? a) Io b) Europa c) Ganymede d) Callisto 20 / 30 20. Which planet in the Solar System has a thick atmosphere composed mainly of carbon dioxide, with surface pressures about 92 times that of Earth? a) Jupiter b) Saturn c) Mars d) Venus 21 / 30 21. What is the approximate distance from the Sun to the inner edge of the Asteroid Belt? a) 0.5 AU b) 2 AU c) 3 AU d) 4 AU 22 / 30 22. Which ground-based observatory is located in Chile's Atacama Desert and is known for its array of radio telescopes used for millimeter-wave astronomy? a) ALMA (Atacama Large Millimeter/submillimeter Array) b) VLT (Very Large Telescope) c) Gran Telescopio Canarias (GTC) d) Subaru Telescope 23 / 30 23. What is the process by which water vapor changes into liquid water? a) Melting b) Evaporation c) Condensation d) Sublimation 24 / 30 24. What is the primary composition of Mercury's surface? a) Ice and water b) Rocky and metallic materials c) Volcanic ash and basalt d) Sand and organic compounds 25 / 30 25. Which moon of Jupiter exhibits a heavily cratered surface, indicating its ancient geological history and lack of significant geological activity? a) Ganymede b) Europa c) Io d) Callisto 26 / 30 26. Which comet is often referred to as "the Great Comet of 1910" due to its spectacular appearance and close approach to Earth? a) Halley's Comet b) Comet Hale-Bopp c) Comet Shoemaker-Levy 9 d) Comet Hyakutake 27 / 30 27. What is the average surface temperature of Pluto? a) -200°C (-328°F) b) -100°C (-148°F) c) 0°C (32°F) d) 100°C (212°F) 28 / 30 28. What was the last appearance of Halley's Comet before its most recent return in 1986? a) 1910 b) 1972 c) 1986 d) 1997 29 / 30 29. Which space telescope is designed to search for Earth-like planets orbiting other stars and is scheduled for launch in the 2020s? a) Hubble Space Telescope b) James Webb Space Telescope c) TESS (Transiting Exoplanet Survey Satellite) d) WFIRST (Wide Field Infrared Survey Telescope) 30 / 30 30. Which space probe successfully explored the dwarf planet Ceres in the asteroid belt, providing valuable data on its surface composition and features? a) New Horizons b) Juno c) Dawn d) Rosetta 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