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 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 2 / 30 2. How many rings does Uranus have? a) 5 b) 9 c) 13 d) 27 3 / 30 3. 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 4 / 30 4. 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 5 / 30 5. What is the potential significance of recent discoveries of subsurface water ice on Mars? a) Evidence of ancient oceans b) Indication of present-day habitability c) Evidence of past volcanic activity d) Indication of geological faults 6 / 30 6. What is the name of the vast, heart-shaped region observed on Pluto's surface, which is informally named after the famous Disney character? a) Pluto's Heart b) Pluto's Valentine c) Pluto's Love d) Pluto's Tombaugh Regio 7 / 30 7. 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 8 / 30 8. 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 9 / 30 9. Which process is responsible for the movement of tectonic plates? a) Erosion b) Subduction c) Convection currents in the mantle d) Volcanic eruptions 10 / 30 10. 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 11 / 30 11. What is the layer of soil that contains organic matter, microorganisms, and plant roots, and is vital for supporting plant growth? a) Subsoil b) Bedrock c) Topsoil d) Regolith 12 / 30 12. 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 13 / 30 13. 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 14 / 30 14. Which space probe provided the first close-up images of the asteroid Vesta and the dwarf planet Ceres in the asteroid belt? a) Voyager 1 b) Voyager 2 c) Pioneer 10 d) Dawn 15 / 30 15. Which gas is present in Pluto's thin atmosphere? a) Oxygen b) Nitrogen c) Carbon dioxide d) Methane 16 / 30 16. Which space probe is currently studying Jupiter's atmosphere, magnetic field, and composition? a) New Horizons b) Juno c) Curiosity d) Opportunity 17 / 30 17. What is the name of the second-largest moon of Pluto? a) Styx b) Nix c) Kerberos d) Hydra 18 / 30 18. Which space probe is currently studying the internal structure and seismic activity of Mars, aiming to understand its geological history? a) New Horizons b) Juno c) InSight d) Perseverance 19 / 30 19. 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 20 / 30 20. 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 21 / 30 21. 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 22 / 30 22. Which spacecraft was the first to directly measure the solar wind? a) Apollo 11 b) Voyager 1 c) Pioneer 10 d) Mariner 2 23 / 30 23. 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 24 / 30 24. What is the primary component of Eris's surface? a) Water ice b) Methane ice c) Nitrogen ice d) Ammonia ice 25 / 30 25. What is the primary component of Neptune's atmosphere? a) Nitrogen b) Hydrogen c) Methane d) Helium 26 / 30 26. 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 27 / 30 27. Which element, essential for life, has been detected in the form of methane on Mars? a) Oxygen b) Nitrogen c) Carbon d) Hydrogen 28 / 30 28. Which of the following is NOT a greenhouse gas? a) Carbon dioxide b) Methane c) Nitrogen d) Water vapor 29 / 30 29. What is the most notable feature of Uranus's atmosphere? a) Giant red spot b) Hexagonal storm c) Massive hurricane d) Strong ammonia odor 30 / 30 30. Which comet is known for its exceptionally long tail and was visible to the naked eye for several months in 1997? a) Halley's Comet b) Comet Hale-Bopp c) Comet Shoemaker-Levy 9 d) Comet Hyakutake 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