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 region beyond the orbit of Neptune where a vast collection of icy bodies, including Pluto, reside? a) Oort Cloud b) Kuiper Belt c) Asteroid Belt d) Scattered Disc 2 / 30 2. What is the name of the largest and brightest ring of Uranus? a) Epsilon Ring b) Delta Ring c) Alpha Ring d) Beta Ring 3 / 30 3. Which comet is famous for its spectacular breakup into multiple fragments, which collided with Jupiter in 1994? a) Halley's Comet b) Comet Hale-Bopp c) Comet Shoemaker-Levy 9 d) Comet Hyakutake 4 / 30 4. What is the estimated total number of icy bodies in the Oort Cloud? a) Thousands b) Millions c) Billions d) Trillions 5 / 30 5. Which meteorite is composed mainly of iron and nickel and often exhibits a characteristic Widmanstätten pattern upon etching? a) Allende b) Hoba c) Canyon Diablo d) Tunguska 6 / 30 6. How many moons does Mars have? a) 1 b) 2 c) 3 d) 4 7 / 30 7. 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 8 / 30 8. What percentage of Earth's atmosphere is composed of nitrogen? a) Approximately 21% b) Approximately 50% c) Approximately 78% d) Approximately 90% 9 / 30 9. Which geological feature on Earth is the result of the collision between tectonic plates, leading to the formation of mountain ranges? a) Impact crater b) Rift valley c) Trench d) Fold mountain 10 / 30 10. What is the name of the elongated extension of Earth's magnetosphere on the side opposite the Sun? a) Magnetotail b) Magnetopause c) Plasmasphere d) Van Allen Belts 11 / 30 11. Which moon of Jupiter is the most volcanically active body in the Solar System, with hundreds of active volcanoes? a) Io b) Europa c) Ganymede d) Callisto 12 / 30 12. What is the primary greenhouse gas in Earth's atmosphere? a) Carbon dioxide b) Methane c) Water vapor d) Nitrous oxide 13 / 30 13. What is the average speed of the solar wind as it leaves the Sun? a) 100 km/s b) 400 km/s c) 1,000 km/s d) 10,000 km/s 14 / 30 14. What is the name of the spacecraft launched by the European Space Agency (ESA) and the Japan Aerospace Exploration Agency (JAXA) to study Mercury? a) Rosetta b) BepiColombo c) Dawn d) Akatsuki 15 / 30 15. What is the biosphere? a) The layer of the Earth's atmosphere where living organisms exist b) The rocky outer layer of the Earth c) The layer of the Earth's mantle containing molten rock d) The zone on Earth where life exists, including land, water, and air 16 / 30 16. What is the name of the large, high-altitude vortex observed at Venus' south pole? a) Venus' Vortex b) Venus' Great Dark Spot c) Venus' South Polar Vortex d) Venus' North Polar Vortex 17 / 30 17. Which of the following is NOT a type of plate boundary? a) Divergent boundary b) Transform boundary c) Convergent boundary d) Isolated boundary 18 / 30 18. 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) 19 / 30 19. How many rings does Uranus have? a) 5 b) 9 c) 13 d) 27 20 / 30 20. 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 21 / 30 21. Which region of a comet's structure is primarily composed of water vapor, carbon dioxide, and other volatile substances? a) Nucleus b) Coma c) Tail d) Ionosphere 22 / 30 22. Which mission provided the first detailed radar maps of Venus's surface? a) Mariner 2 b) Magellan c) Pioneer Venus d) Venera 7 23 / 30 23. 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 24 / 30 24. What is the approximate diameter of Jupiter's Great Red Spot? a) 10,000 kilometers (6,200 miles) b) 20,000 kilometers (12,400 miles) c) 30,000 kilometers (18,600 miles) d) 40,000 kilometers (24,800 miles) 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. What is the potential significance of recurring slope lineae (RSL) observed on Mars? a) Evidence of ancient rivers b) Indication of active water flows c) Evidence of volcanic activity d) Indication of seismic activity 27 / 30 27. What are auroras commonly known as when seen in the Northern Hemisphere? a) Southern Lights b) Equatorial Lights c) Northern Lights d) Polar Lights 28 / 30 28. Which celestial body exhibits significant tidal forces from both Jupiter and Saturn, resulting in its elongated shape and active cryovolcanism? a) Io b) Europa c) Enceladus d) Titan 29 / 30 29. Which process is responsible for the movement of tectonic plates? a) Erosion b) Subduction c) Convection currents in the mantle d) Volcanic eruptions 30 / 30 30. What is the name of the largest impact crater on the Moon, located on the lunar near side and visible from Earth? a) Tycho b) Copernicus c) Mare Orientale d) South Pole–Aitken Basin 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