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 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 2 / 30 2. What is the name of the prominent storm observed on Neptune's atmosphere that disappeared after a few years? a) Great Red Spot b) Hexagonal storm c) Great Dark Spot d) Scooter 3 / 30 3. Which moon of Neptune is known for its irregular shape and heavily cratered surface? a) Proteus b) Triton c) Nereid d) Larissa 4 / 30 4. What is the name of the process by which rocks are transformed into new types of rocks through heat and pressure? a) Erosion b) Weathering c) Deposition d) Metamorphism 5 / 30 5. Which layer of the Earth's atmosphere is closest to the planet's surface? a) Troposphere b) Stratosphere c) Mesosphere d) Thermosphere 6 / 30 6. Which space probe recently completed its mission by crashing into the surface of Comet 67P/Churyumov-Gerasimenko? a) New Horizons b) Juno c) Dawn d) Rosetta 7 / 30 7. 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 8 / 30 8. 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 9 / 30 9. What is the name of the giant storm system observed on Neptune? a) Great White Spot b) Great Blue Spot c) Great Green Spot d) Great Dark Spot 10 / 30 10. What is the name of the largest moon of Saturn? a) Enceladus b) Titan c) Mimas d) Rhea 11 / 30 11. Which type of tail of a comet is composed of ionized gas and is pushed away from the Sun by the solar wind? a) Dust tail b) Ion tail c) Plasma tail d) Gas tail 12 / 30 12. What is the name of the phenomenon where a planet or moon passes directly between a star and the observer, causing a temporary decrease in the star's brightness? a) Solar eclipse b) Lunar eclipse c) Transit d) Occultation 13 / 30 13. What is the name of the second-largest moon of Pluto? a) Styx b) Nix c) Kerberos d) Hydra 14 / 30 14. 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 15 / 30 15. Which comet is the most famous and well-known, with a regular period of approximately 76 years? a) Halley's Comet b) Comet Hale-Bopp c) Comet Shoemaker-Levy 9 d) Comet Hyakutake 16 / 30 16. Which moon of Neptune is thought to be a captured Kuiper Belt object, based on its retrograde orbit and unique composition? a) Titan b) Enceladus c) Miranda d) Triton 17 / 30 17. What is the name of the largest known object in the asteroid belt between Mars and Jupiter? a) Eris b) Haumea c) Makemake d) Ceres 18 / 30 18. Which moon of Neptune is known for its retrograde orbit, meaning it orbits the planet in the opposite direction of Neptune's rotation? a) Triton b) Nereid c) Proteus d) Larissa 19 / 30 19. What is the name of the valley network system on Mars that suggests past water erosion? a) Valles Marineris b) Elysium Mons c) Hellas Planitia d) Noctis Labyrinthus 20 / 30 20. What is unique about Triton's orbit around Neptune? a) It is highly eccentric b) It is retrograde c) It is synchronous d) It is equatorial 21 / 30 21. 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 22 / 30 22. What is the name of the moon of Pluto discovered in 2005 and named after the ferryman of the underworld in Greek mythology? a) Charon b) Styx c) Nix d) Kerberos 23 / 30 23. 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 24 / 30 24. 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 25 / 30 25. 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 26 / 30 26. Which moon of Saturn exhibits a prominent equatorial ridge that encircles its entire circumference, giving it a distinct walnut-like shape? a) Titan b) Enceladus c) Mimas d) Iapetus 27 / 30 27. 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 28 / 30 28. What is the name of a small rocky or metallic body in space that enters Earth's atmosphere and produces a streak of light? a) Meteorite b) Meteoroid c) Meteor d) Comet 29 / 30 29. What is the name of the spacecraft that successfully landed the Huygens probe on Saturn's largest moon, Titan, in 2005? a) Cassini b) New Horizons c) Juno d) Voyager 2 30 / 30 30. Which space probe successfully explored the dwarf planet Ceres in the asteroid belt, providing valuable data on its surface composition and features? a) New Horizons b) Juno c) Dawn d) Rosetta 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