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. What is the primary component of Neptune's atmosphere? a) Nitrogen b) Hydrogen c) Methane d) Helium 3 / 30 3. What is the rotational period of Earth? a) Approximately 24 hours b) Approximately 365 days c) Approximately 27.3 days d) Approximately 29.5 days 4 / 30 4. What is the average surface temperature of Pluto? a) -200°C (-328°F) b) -100°C (-148°F) c) 0°C (32°F) d) 100°C (212°F) 5 / 30 5. Which element, essential for life, has been detected in the form of methane on Mars? a) Oxygen b) Nitrogen c) Carbon d) Hydrogen 6 / 30 6. Which of the following is NOT a greenhouse gas? a) Carbon dioxide b) Methane c) Nitrogen d) Water vapor 7 / 30 7. What is the name of the largest moon of Neptune? a) Triton b) Proteus c) Larissa d) Naiad 8 / 30 8. 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 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. Which space probe is currently studying Jupiter's atmosphere, magnetic field, and composition? a) New Horizons b) Juno c) Curiosity d) Opportunity 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. Which space probe became the first human-made object to reach interstellar space? a) Voyager 1 b) Voyager 2 c) Pioneer 10 d) Pioneer 11 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. 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 15 / 30 15. What geological feature on Earth is formed by the stretching and thinning of the crust, leading to the sinking of blocks of land between parallel faults? a) Impact crater b) Rift valley c) Trench d) Fold mountain 16 / 30 16. 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 17 / 30 17. What is the name of the largest and brightest ring of Uranus? a) Epsilon Ring b) Delta Ring c) Alpha Ring d) Beta Ring 18 / 30 18. What is the name of the robotic rover currently exploring the surface of Mars? a) Voyager b) Curiosity c) Opportunity d) Spirit 19 / 30 19. 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 20 / 30 20. What is the name of the spacecraft that became the first human-made object to reach interstellar space in 2012? a) Voyager 1 b) Voyager 2 c) New Horizons d) Cassini 21 / 30 21. Which effect of tidal forces is responsible for the gradual recession of the Moon from Earth and the lengthening of Earth's day? a) Tidal heating b) Tidal friction c) Tidal stretching d) Tidal locking 22 / 30 22. How does the solar wind affect Earth's magnetosphere? a) It has no effect b) It strengthens the magnetosphere c) It compresses and distorts the magnetosphere d) It neutralizes the magnetosphere 23 / 30 23. What is the name of the region beyond the orbit of Neptune where a vast collection of icy bodies, including Pluto, reside? a) Oort Cloud b) Kuiper Belt c) Asteroid Belt d) Scattered Disc 24 / 30 24. Which space probe is currently studying the polar regions and atmosphere of Mars, searching for signs of past or present life? a) New Horizons b) Juno c) Curiosity d) Perseverance 25 / 30 25. Which layer of the Earth's atmosphere contains the ozone layer? a) Troposphere b) Stratosphere c) Mesosphere d) Thermosphere 26 / 30 26. 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 27 / 30 27. Which feature is the largest impact crater on Mercury? a) Caloris Basin b) Hellas Basin c) Tycho Crater d) Mare Imbrium 28 / 30 28. Which spacecraft conducted a close-up study of Ceres, revealing bright spots and other intriguing features on its surface? a) Voyager 1 b) Voyager 2 c) Dawn d) New Horizons 29 / 30 29. What is the primary component of Eris's surface? a) Water ice b) Methane ice c) Nitrogen ice d) Ammonia ice 30 / 30 30. What geological feature on Earth is formed by the bending or buckling of rock layers under compressional stress, leading to the uplift of mountain ranges? a) Impact crater b) Rift valley c) Trench d) Fold mountain 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