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 moon of Haumea that orbits within its elongated shape? a) Hi'iaka b) Namaka c) Mo'o d) Pele 2 / 30 2. 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 3 / 30 3. 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 4 / 30 4. 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 5 / 30 5. Which moon of Jupiter is known for its heavily cratered surface, indicating its ancient geological history and lack of significant geological activity? a) Ganymede b) Europa c) Io d) Callisto 6 / 30 6. Which comet made a close approach to Earth in 1996, becoming widely visible to the naked eye? a) Halley's Comet b) Comet Hale-Bopp c) Comet Shoemaker-Levy 9 d) Comet Hyakutake 7 / 30 7. 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 8 / 30 8. 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 9 / 30 9. 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) 10 / 30 10. 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 11 / 30 11. What is the name of the comet that made a close approach to Earth in 1997, becoming one of the brightest comets of the 20th century? a) Halley's Comet b) Comet Hale-Bopp c) Comet Shoemaker-Levy 9 d) Comet Hyakutake 12 / 30 12. 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 13 / 30 13. What is the name of the large impact crater on the Moon's surface that contains the Sea of Tranquility, where Apollo 11 landed? a) Tycho b) Clavius c) Mare Tranquillitatis d) Copernicus 14 / 30 14. 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 15 / 30 15. What is axial tilt in planetary astronomy? a) The distance between a planet and the Sun b) The angle between a planet's orbit and the plane of its equator c) The time it takes for a planet to complete one orbit around the Sun d) The angle between a planet's axis of rotation and the perpendicular to its orbital plane 16 / 30 16. What is the name of the meteorite that produced the largest observed meteor airburst event in recorded history? a) Allende b) Hoba c) Canyon Diablo d) Tunguska 17 / 30 17. Which mission provided the first detailed radar maps of Venus's surface? a) Mariner 2 b) Magellan c) Pioneer Venus d) Venera 7 18 / 30 18. Which asteroid is the largest object in the Asteroid Belt? a) Vesta b) Ceres c) Pallas d) Hygiea 19 / 30 19. During which solar event are auroras most likely to be observed? a) Solar eclipse b) Lunar eclipse c) Solar flare d) New moon 20 / 30 20. What is the name of the process by which rocks are broken down into smaller fragments through physical, chemical, or biological means? a) Erosion b) Weathering c) Deposition d) Lithification 21 / 30 21. Which layer of the Earth's atmosphere contains the ozone layer? a) Mesosphere b) Stratosphere c) Troposphere d) Thermosphere 22 / 30 22. 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) 23 / 30 23. 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 24 / 30 24. Which moon of Saturn is known for its dense atmosphere, which is primarily composed of nitrogen and methane, and its hydrocarbon lakes and seas on its surface? a) Titan b) Enceladus c) Mimas d) Iapetus 25 / 30 25. What is the name of the large, dark plains on the Moon's surface, formed by ancient volcanic eruptions? a) Craters b) Highlands c) Rilles d) Maria 26 / 30 26. 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 27 / 30 27. 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 28 / 30 28. What is the lithosphere? a) The layer of the Earth's atmosphere where weather occurs b) The layer of the Earth's crust and upper mantle c) The layer of the Earth's core composed of molten iron and nickel d) The layer of the Earth's mantle beneath the lithosphere 29 / 30 29. What is the name of the robotic rover currently exploring the surface of Mars? a) Voyager b) Curiosity c) Opportunity d) Spirit 30 / 30 30. 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 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