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 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 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) 2 / 30 2. 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 3 / 30 3. What is the name of the moon that was discovered to have a significant impact on Uranus's ring system? a) Oberon b) Miranda c) Ariel d) Cordelia 4 / 30 4. Which moon of Jupiter is the largest moon in the Solar System, even larger than the planet Mercury? a) Io b) Europa c) Ganymede d) Callisto 5 / 30 5. What is the name of the moon of Pluto discovered in 2011 and named after the three-headed dog that guards the entrance to the underworld in Greek mythology? a) Charon b) Styx c) Nix d) Kerberos 6 / 30 6. What is the name of the tallest mountain on Mars, often compared to Mount Everest on Earth? a) Olympus Mons b) Mount Kilimanjaro c) Mount Sharp d) Mount Vesuvius 7 / 30 7. What is the name of the large, high-altitude vortex observed at Venus' south pole? a) Saturn's Hexagon b) Venus' Vortex c) Venus' South Polar Vortex d) Venus' North Polar Vortex 8 / 30 8. Which ground-based telescope is located in Chile and is designed to search for exoplanets using the transit method? a) Hubble Space Telescope b) James Webb Space Telescope c) Gran Telescopio Canarias (GTC) d) SPECULOOS 9 / 30 9. 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 10 / 30 10. Which of the following is NOT a greenhouse gas? a) Carbon dioxide b) Methane c) Nitrogen d) Water vapor 11 / 30 11. Which canyon system on Mars is the largest in the solar system? a) Grand Canyon b) Valles Marineris c) Great Rift Valley d) Canyonlands National Park 12 / 30 12. Which space probe was the first to fly by Jupiter and Saturn and provided close-up images of their moons, including Io's volcanic activity? a) Voyager 1 b) Voyager 2 c) Pioneer 10 d) Pioneer 11 13 / 30 13. How many moons does Mars have? a) 1 b) 2 c) 3 d) 4 14 / 30 14. Which comet is the most famous and well-known, with a regular period of approximately 76 years? a) Halley's Comet b) Comet Hale-Bopp c) Comet Shoemaker-Levy 9 d) Comet Hyakutake 15 / 30 15. What is the name of the largest volcano on Venus? a) Mauna Kea b) Olympus Mons c) Maxwell Montes d) Maat Mons 16 / 30 16. Which asteroid is the largest object in the Asteroid Belt? a) Vesta b) Ceres c) Pallas d) Hygiea 17 / 30 17. What is the name of the dwarf planet located in the Kuiper Belt, known for its elongated shape and rapid rotation? a) Pluto b) Haumea c) Eris d) Makemake 18 / 30 18. 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 19 / 30 19. What is the process by which water vapor changes into liquid water? a) Melting b) Evaporation c) Condensation d) Sublimation 20 / 30 20. What is the solar wind? a) A stream of water particles from the Sun b) A flow of charged particles released from the Sun's atmosphere c) A type of solar radiation d) A gravitational wave from the Sun 21 / 30 21. What is the name of the asteroid belt object that was visited by the Dawn spacecraft in 2011? a) Vesta b) Ceres c) Pallas d) Hygiea 22 / 30 22. Which gas giant planet exhibits alternating bands of clouds in its atmosphere, known as belts and zones, caused by powerful atmospheric jet streams? a) Jupiter b) Saturn c) Neptune d) Uranus 23 / 30 23. 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 24 / 30 24. What is the phenomenon called when the solar wind compresses Earth's magnetosphere on the side facing the Sun? a) Magnetotail b) Bow Shock c) Magnetopause d) Solar Flare 25 / 30 25. What is the name of the giant storm system observed on Neptune? a) Great White Spot b) Great Blue Spot c) Great Green Spot d) Great Dark Spot 26 / 30 26. What is the name of the massive, swirling storm system observed at Neptune's equator? a) Neptune's Equatorial Storm b) Neptune's Great Dark Spot c) Neptune's Equatorial Vortex d) Neptune's South Polar Vortex 27 / 30 27. What is the term for the process by which plants convert carbon dioxide and water into glucose and oxygen using sunlight? a) Photosynthesis b) Respiration c) Transpiration d) Decomposition 28 / 30 28. Which celestial body exhibits significant tidal heating, resulting in geologically active features such as cryovolcanoes? a) Earth b) Mars c) Io (moon of Jupiter) d) Triton (moon of Neptune) 29 / 30 29. Which spacecraft, launched by NASA in 2006, conducted a historic flyby of Pluto in 2015, providing the first detailed images of the dwarf planet and its moons? a) Voyager 1 b) New Horizons c) Juno d) Cassini 30 / 30 30. Which spacecraft was the first to directly measure the solar wind? a) Apollo 11 b) Voyager 1 c) Pioneer 10 d) Mariner 2 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