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 moon of Uranus is known for its unusual, roughly spherical shape, with a diameter about one-third that of our Moon? a) Titan b) Enceladus c) Miranda d) Triton 2 / 30 2. What is the name of the first successful Mars rover mission, launched by NASA in 1996, which provided valuable data on the Martian surface and atmosphere? a) Opportunity b) Curiosity c) Spirit d) Sojourner 3 / 30 3. Which moon of Saturn is thought to have subsurface oceans beneath its icy crust, similar to Europa and Enceladus? a) Titan b) Enceladus c) Miranda d) Triton 4 / 30 4. 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 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. Which moon of Saturn is believed to have a subsurface ocean beneath its icy crust? a) Enceladus b) Titan c) Mimas d) Dione 7 / 30 7. What is the name of the largest moon of Saturn? a) Enceladus b) Titan c) Mimas d) Rhea 8 / 30 8. Which moon of Jupiter is known for its bright, highly reflective surface and its distinctive grooved terrain? a) Io b) Europa c) Ganymede d) Callisto 9 / 30 9. Which space probe conducted a flyby of Pluto in 2015, providing the first close-up images of the dwarf planet? a) New Horizons b) Juno c) Curiosity d) Opportunity 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 term for the gradual wearing away of the Earth's surface by natural processes such as wind, water, and ice? a) Erosion b) Deposition c) Weathering d) Subsidence 12 / 30 12. Which of the following is NOT a greenhouse gas? a) Carbon dioxide b) Methane c) Nitrogen d) Water vapor 13 / 30 13. Which moon of Uranus is unique for its extreme axial tilt, causing it to essentially orbit the planet on its side? a) Miranda b) Ariel c) Oberon d) Titania 14 / 30 14. Which of the following is NOT a type of rock formed by the process of weathering and erosion? a) Sedimentary rock b) Igneous rock c) Metamorphic rock d) None of the above 15 / 30 15. Which spacecraft was the first to successfully land humans on the Moon? a) Apollo 11 b) Apollo 13 c) Apollo 15 d) Apollo 17 16 / 30 16. 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 17 / 30 17. What is the rotational period of Earth? a) Approximately 24 hours b) Approximately 365 days c) Approximately 27.3 days d) Approximately 29.5 days 18 / 30 18. 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 19 / 30 19. Which ground-based telescope is the world's largest single-aperture optical telescope and is located in the Canary Islands, Spain? a) Hubble Space Telescope b) James Webb Space Telescope c) Gran Telescopio Canarias (GTC) d) Very Large Telescope (VLT) 20 / 30 20. What is tidal locking? a) The synchronization of rotation and orbit of a moon b) The synchronization of rotation and orbit of a planet c) The synchronization of rotation and orbit of a star d) The synchronization of rotation and orbit of a comet 21 / 30 21. What is the name of the phenomenon where tidal forces cause a celestial body to become elongated along the axis pointing toward the attracting body? a) Tidal heating b) Tidal friction c) Tidal stretching d) Tidal locking 22 / 30 22. What is the name of the asteroid belt object that was visited by the Japanese spacecraft Hayabusa2? a) Ryugu b) Bennu c) Itokawa d) Mathilde 23 / 30 23. What is the state of Mercury's atmosphere? a) Thick and cloudy b) Thin and composed mainly of oxygen c) Almost nonexistent and composed of trace elements d) Similar to Earth's atmosphere 24 / 30 24. What is the name of the largest meteorite ever found on Earth? a) Allende b) Hoba c) Canyon Diablo d) Tunguska 25 / 30 25. Which planet in the Solar System is known for its massive dust storms that can engulf the entire planet for months? a) Jupiter b) Saturn c) Mars d) Venus 26 / 30 26. Which layer of the Earth's atmosphere contains the ozone layer? a) Mesosphere b) Stratosphere c) Troposphere d) Thermosphere 27 / 30 27. Which space telescope is operated by NASA and the European Space Agency (ESA) and has made significant contributions to our understanding of dark matter and dark energy? a) Hubble Space Telescope b) James Webb Space Telescope c) Keck Observatory d) Planck Space Observatory 28 / 30 28. Which surface feature on Venus is a vast, elevated region similar to continents on Earth? a) Valles Marineris b) Aphrodite Terra c) Olympus Mons d) Tharsis Rise 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 was the approximate length of the tail of Comet Hale-Bopp during its peak brightness in 1997? a) 1 million kilometers b) 10 million kilometers c) 100 million kilometers d) 1 billion kilometers 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