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 faint, outermost ring of Saturn discovered by the Voyager spacecraft? a) E Ring b) F Ring c) G Ring d) H Ring 2 / 30 2. 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 3 / 30 3. 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 4 / 30 4. What is the most prominent feature of Neptune's atmosphere? a) Great Red Spot b) Hexagonal storm c) Great Dark Spot d) Polar vortex 5 / 30 5. What is the estimated total number of icy bodies in the Oort Cloud? a) Thousands b) Millions c) Billions d) Trillions 6 / 30 6. 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 7 / 30 7. Which layer of the Earth's interior is divided into the outer and inner layers? a) Crust b) Mantle c) Core d) Lithosphere 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. What geological feature on Mercury suggests it has contracted over time? a) Lava plains b) Scarps or cliffs c) Impact basins d) Volcanic vents 10 / 30 10. 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 11 / 30 11. What is the primary component of Neptune's atmosphere? a) Nitrogen b) Hydrogen c) Methane d) Helium 12 / 30 12. Which space probe was the first to visit Jupiter and later became the first human-made object to leave the Solar System? a) Voyager 1 b) Voyager 2 c) Pioneer 10 d) Pioneer 11 13 / 30 13. Which of the following is NOT a type of plate boundary? a) Divergent boundary b) Transform boundary c) Convergent boundary d) Isolated boundary 14 / 30 14. 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 15 / 30 15. What is the solar wind? a) A stream of water particles from the Sun b) A flow of charged particles released from the Sun's atmosphere c) A type of solar radiation d) A gravitational wave from the Sun 16 / 30 16. 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) 17 / 30 17. What is the name of the elongated extension of Earth's magnetosphere on the side opposite the Sun? a) Magnetotail b) Magnetopause c) Plasmasphere d) Van Allen Belts 18 / 30 18. Which type of comets are believed to originate from the Oort Cloud? a) Short-period comets b) Long-period comets c) Jupiter-family comets d) Halley-type comets 19 / 30 19. What is the term for the movement of water from the Earth's surface into the atmosphere through evaporation from bodies of water and transpiration from plants? a) Condensation b) Precipitation c) Sublimation d) Evapotranspiration 20 / 30 20. What is the name of the prominent gap in Saturn's rings, caused by the gravitational influence of the moon Mimas? a) Encke Gap b) Cassini Division c) Keeler Gap d) Roche Division 21 / 30 21. Which element, essential for life, has been detected in the form of methane on Mars? a) Oxygen b) Nitrogen c) Carbon d) Hydrogen 22 / 30 22. 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 23 / 30 23. 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 24 / 30 24. What are the primary components of the solar wind? a) Helium and oxygen b) Hydrogen and nitrogen c) Protons and electrons d) Neutrons and positrons 25 / 30 25. What is the primary greenhouse gas in Earth's atmosphere? a) Carbon dioxide b) Methane c) Water vapor d) Nitrous oxide 26 / 30 26. 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 27 / 30 27. According to Kepler's first law of planetary motion, what shape do planetary orbits trace around the Sun? a) Circular b) Elliptical c) Parabolic d) Hyperbolic 28 / 30 28. 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 29 / 30 29. What is the name of the largest moon of Neptune? a) Triton b) Proteus c) Larissa d) Naiad 30 / 30 30. What is the name of the phase of the Moon when it is fully illuminated as seen from Earth? a) New Moon b) First Quarter c) Full Moon d) Third Quarter Please provide accurate information so we can send your Achievement Certificate by mail. NameEmailPhone Number Your score isShare your achievement! 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