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 of the following is NOT a layer of the Earth's interior? a) Crust b) Mantle c) Core d) Hydrosphere 2 / 30 2. Which comet is often referred to as "the Great Comet of 1910" due to its spectacular appearance and close approach to Earth? a) Halley's Comet b) Comet Hale-Bopp c) Comet Shoemaker-Levy 9 d) Comet Hyakutake 3 / 30 3. Which moon of Uranus is known for its heavily cratered surface and bright, icy terrain? a) Oberon b) Miranda c) Ariel d) Umbriel 4 / 30 4. What is the primary component of Jupiter's atmosphere? a) Oxygen b) Nitrogen c) Helium d) Carbon dioxide 5 / 30 5. Which moon of Jupiter is thought to have a subsurface ocean beneath its icy crust, similar to Europa, but with a greater depth and complexity? a) Io b) Europa c) Ganymede d) Callisto 6 / 30 6. What is the Kuiper Belt? a) A region of space between Mars and Jupiter b) A ring of debris surrounding Saturn c) A region of the outer Solar System beyond Neptune d) A cluster of asteroids near Earth 7 / 30 7. What percentage of Earth's atmosphere is composed of nitrogen? a) Approximately 21% b) Approximately 50% c) Approximately 78% d) Approximately 90% 8 / 30 8. What is the biosphere? a) The layer of the Earth's atmosphere where living organisms exist b) The rocky outer layer of the Earth c) The layer of the Earth's mantle containing molten rock d) The zone on Earth where life exists, including land, water, and air 9 / 30 9. Which space probe provided the first close-up images of Jupiter and Saturn? a) Voyager 1 b) Voyager 2 c) Pioneer 10 d) Pioneer 11 10 / 30 10. What effect do tidal forces have on celestial bodies? a) They cause heating and melting of the surface b) They cause earthquakes and volcanic eruptions c) They cause the elongation and deformation of the body d) They cause the body to lose its atmosphere 11 / 30 11. What is the approximate distance from the Sun to the inner edge of the Asteroid Belt? a) 0.5 AU b) 2 AU c) 3 AU d) 4 AU 12 / 30 12. 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 13 / 30 13. What phenomenon on Venus is characterized by a slow retrograde rotation, meaning it rotates in the opposite direction of most planets in the Solar System? a) Axial tilt b) Retrograde rotation c) Synodic period d) Orbital resonance 14 / 30 14. What is the name of the largest moon of Neptune? a) Triton b) Proteus c) Larissa d) Naiad 15 / 30 15. What is the heliosphere? a) The Sun's core b) The region around the Sun dominated by the solar wind c) A layer within the Sun d) A planet orbiting close to 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 hexagonal cloud pattern observed at Saturn's north pole? a) Saturn's Hexagon b) Jupiter's Great Red Spot c) Venus' Vortex d) Uranus' Rings 18 / 30 18. Which Apollo mission was the last to land humans on the Moon's surface? a) Apollo 14 b) Apollo 15 c) Apollo 16 d) Apollo 17 19 / 30 19. Which element, essential for life, has been detected in the form of methane on Mars? a) Oxygen b) Nitrogen c) Carbon d) Hydrogen 20 / 30 20. 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) 21 / 30 21. Which space probe conducted flybys of Jupiter and Saturn before embarking on a trajectory to leave the Solar System in a different direction from Voyager 1? a) Voyager 1 b) Voyager 2 c) Pioneer 10 d) Pioneer 11 22 / 30 22. Which moon of Jupiter has a thin atmosphere composed mostly of carbon dioxide, with surface pressures less than one-thousandth of Earth's? a) Io b) Europa c) Ganymede d) Callisto 23 / 30 23. What geological feature on Mars is believed to be the largest volcano in the Solar System by volume and is named after the Roman god of war? a) Olympus Mons b) Tharsis Montes c) Elysium Mons d) Pavonis Mons 24 / 30 24. 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 25 / 30 25. What is the most notable feature of Uranus's atmosphere? a) Giant red spot b) Hexagonal storm c) Massive hurricane d) Strong ammonia odor 26 / 30 26. What is the name of the largest impact basin on Mars, covering a vast region of the planet's southern hemisphere? a) Hellas Planitia b) Valles Marineris c) Utopia Planitia d) Argyre Planitia 27 / 30 27. What is the primary composition of objects found in the Oort Cloud? a) Rock and metal b) Ice and rock c) Gas and dust d) Hydrogen and helium 28 / 30 28. 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 29 / 30 29. 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 30 / 30 30. Which spacecraft provided the first close-up images and data of Uranus and its moons? a) Voyager 1 b) Voyager 2 c) Cassini d) New Horizons 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