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 space telescope is designed to search for Earth-like planets orbiting other stars and is scheduled for launch in the 2020s? a) Hubble Space Telescope b) James Webb Space Telescope c) TESS (Transiting Exoplanet Survey Satellite) d) WFIRST (Wide Field Infrared Survey Telescope) 2 / 30 2. Which moon of Jupiter is the most volcanically active body in the Solar System, with hundreds of active volcanoes? a) Io b) Europa c) Ganymede d) Callisto 3 / 30 3. 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 4 / 30 4. What is the central solid core of a comet called? a) Nucleus b) Coma c) Tail d) Ionosphere 5 / 30 5. Which moon of Neptune is the largest and seventh-largest moon in the solar system? a) Nereid b) Proteus c) Triton d) Larissa 6 / 30 6. What are substorms in the context of Earth's magnetosphere? a) Minor earthquakes caused by magnetic field changes b) Temporary disturbances in the magnetosphere that intensify auroras c) Sudden changes in weather patterns d) Localized solar flares 7 / 30 7. 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 8 / 30 8. How does solar wind contribute to the creation of auroras on Earth? a) By heating the Earth's surface b) By interacting with Earth's magnetic field and atmosphere c) By increasing Earth's gravitational pull d) By blocking sunlight 9 / 30 9. Which layer of the Earth's atmosphere is closest to the planet's surface? a) Troposphere b) Stratosphere c) Mesosphere d) Thermosphere 10 / 30 10. 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 11 / 30 11. What is the name of the region around Earth where charged particles are trapped by the planet's magnetic field? a) Magnetosphere b) Heliosphere c) Thermosphere d) Stratosphere 12 / 30 12. 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 13 / 30 13. 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 14 / 30 14. 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 15 / 30 15. Which gas giant planet has the fastest winds in the Solar System, with wind speeds reaching up to 2,100 kilometers per hour (about 1,305 miles per hour)? a) Jupiter b) Saturn c) Neptune d) Uranus 16 / 30 16. What type of rock is formed from the cooling and solidification of magma or lava? a) Sedimentary b) Metamorphic c) Igneous d) None of the above 17 / 30 17. What is the largest moon of Pluto? a) Charon b) Styx c) Nix d) Kerberos 18 / 30 18. Which moon of Jupiter is thought to have a subsurface ocean beneath its icy crust, potentially harboring conditions suitable for life? a) Io b) Europa c) Ganymede d) Callisto 19 / 30 19. 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 20 / 30 20. Which moon of Saturn is known for its active geysers erupting from its south pole, indicating the presence of a subsurface ocean? a) Titan b) Enceladus c) Miranda d) Triton 21 / 30 21. What is the name of the largest volcano on Venus? a) Mauna Kea b) Olympus Mons c) Maxwell Montes d) Maat Mons 22 / 30 22. Which moon of Saturn exhibits extensive cryovolcanism, with geysers erupting from its south polar region? a) Titan b) Enceladus c) Rhea d) Dione 23 / 30 23. What is the primary component of Venus's atmosphere? a) Nitrogen b) Oxygen c) Carbon dioxide d) Methane 24 / 30 24. What is the most prominent feature of Saturn? a) Its hexagonal-shaped storm b) Its prominent ring system c) Its massive size d) Its liquid metallic hydrogen layer 25 / 30 25. 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 26 / 30 26. What is the name of the asteroid belt object that was visited by the Dawn spacecraft in 2011? a) Vesta b) Ceres c) Pallas d) Hygiea 27 / 30 27. Which celestial body exhibits significant tidal heating, resulting in geologically active features such as cryovolcanoes? a) Earth b) Mars c) Io (moon of Jupiter) d) Triton (moon of Neptune) 28 / 30 28. 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 29 / 30 29. What is the name of the space telescope launched by NASA in 1990, which has provided breathtaking images and groundbreaking discoveries in astronomy? a) Hubble Space Telescope b) James Webb Space Telescope c) Spitzer Space Telescope d) Chandra X-ray Observatory 30 / 30 30. 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 Please provide accurate information so we can send your Achievement Certificate by mail. NameEmailPhone Number Your score is Share your achievement! LinkedIn Facebook Twitter 0% Restart Test Please provide your feedback. Thank you for your valuable feedback. Send feedback Buy Solar System MCQ PDF for Offline Study