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. Which asteroid is the third-largest object in the Asteroid Belt? a) Vesta b) Ceres c) Pallas d) Hygiea 2 / 30 2. Which dwarf planet was the first to be discovered beyond Pluto's orbit in the Kuiper Belt? a) Eris b) Haumea c) Makemake d) Ceres 3 / 30 3. What is the largest moon of Pluto? a) Charon b) Styx c) Nix d) Kerberos 4 / 30 4. 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 5 / 30 5. What geological feature on Mercury suggests it has contracted over time? a) Lava plains b) Scarps or cliffs c) Impact basins d) Volcanic vents 6 / 30 6. What is the name of the region on Pluto characterized by vast plains of nitrogen ice? a) Sputnik Planitia b) Tombaugh Regio c) Lowell Regio d) Cthulhu Regio 7 / 30 7. What causes tidal forces? a) Gravitational pull from nearby stars b) Gravitational pull from the Moon and Sun c) Electromagnetic forces between celestial bodies d) Nuclear reactions within celestial bodies 8 / 30 8. 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 9 / 30 9. Which moon of Saturn is believed to have a subsurface ocean beneath its icy crust? a) Enceladus b) Titan c) Mimas d) Dione 10 / 30 10. Which layer of the Earth's atmosphere contains most of the weather phenomena? a) Troposphere b) Stratosphere c) Mesosphere d) Thermosphere 11 / 30 11. Which Apollo mission was the first to include a lunar rover, allowing astronauts to explore a larger area of the Moon's surface? a) Apollo 11 b) Apollo 14 c) Apollo 15 d) Apollo 16 12 / 30 12. Which gas giant planet has the fastest winds in the Solar System, with wind speeds reaching up to 2,100 kilometers per hour (about 1,305 miles per hour)? a) Jupiter b) Saturn c) Neptune d) Uranus 13 / 30 13. 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) 14 / 30 14. What is the name of the dark, vortical storm system observed at Neptune's equator? a) Great Dark Spot b) Great Red Spot c) North Equatorial Belt d) South Equatorial Belt 15 / 30 15. Which moon of Uranus is known for its chaotic, fractured surface, possibly due to past impacts or internal heating? a) Titan b) Enceladus c) Miranda d) Triton 16 / 30 16. Which moon of Jupiter is known for its smooth, icy surface with long cracks and streaks caused by tidal forces? a) Io b) Europa c) Ganymede d) Callisto 17 / 30 17. Which spacecraft conducted a flyby of Pluto and explored the Kuiper Belt object Arrokoth? a) Voyager 2 b) New Horizons c) Cassini d) Dawn 18 / 30 18. 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) 19 / 30 19. Which space probe is currently studying Jupiter's atmosphere, magnetic field, and composition? a) New Horizons b) Juno c) Curiosity d) Opportunity 20 / 30 20. 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 21 / 30 21. What is the name of the group of four large moons of Jupiter discovered by Galileo? a) Galilean Moons b) Jovian Moons c) Olympian Moons d) Titan Moons 22 / 30 22. Which moon of Mars is closer to the planet? a) Phobos b) Deimos c) Titan d) Ganymede 23 / 30 23. How does solar wind contribute to the creation of auroras on Earth? a) By heating the Earth's surface b) By interacting with Earth's magnetic field and atmosphere c) By increasing Earth's gravitational pull d) By blocking sunlight 24 / 30 24. What is the effect of a strong solar wind on satellites in orbit around Earth? a) It has no effect b) It can damage their electronics and alter their orbits c) It can increase their speed d) It can make them invisible to ground stations 25 / 30 25. Which asteroid is the target of the Hayabusa2 mission, which aimed to return a sample to Earth? a) Ryugu b) Bennu c) Itokawa d) Mathilde 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. Which instrument on spacecraft is used to measure the impact of the solar wind on Earth's magnetosphere? a) Magnetometer b) Spectrometer c) Seismometer d) Barometer 28 / 30 28. Which space probe was the first to visit the asteroid belt and to make direct observations of Jupiter? a) Voyager 1 b) Voyager 2 c) Pioneer 10 d) Pioneer 11 29 / 30 29. Which layer of the Earth's atmosphere is closest to the planet's surface? a) Troposphere b) Stratosphere c) Mesosphere d) Thermosphere 30 / 30 30. Which space probe is currently studying the polar regions and atmosphere of Mars, searching for signs of past or present life? a) New Horizons b) Juno c) Curiosity d) Perseverance 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