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 primary greenhouse gas in Earth's atmosphere? a) Carbon dioxide b) Methane c) Water vapor d) Nitrous oxide 2 / 30 2. How does the temperature on Mercury's surface vary? a) It is consistently hot b) It is consistently cold c) It varies widely between day and night d) It is mild and stable 3 / 30 3. What term refers to the bright streak of light produced when a meteoroid burns up in Earth's atmosphere? a) Meteorite b) Meteoroid c) Meteor d) Comet 4 / 30 4. Which moon of Mars is closer to the planet? a) Phobos b) Deimos c) Titan d) Ganymede 5 / 30 5. Which layer of the Earth's atmosphere contains most of the weather phenomena? a) Troposphere b) Stratosphere c) Mesosphere d) Thermosphere 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. 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 8 / 30 8. Which asteroid is known for its large impact crater named Rheasilvia Basin? a) Vesta b) Ceres c) Pallas d) Hygiea 9 / 30 9. 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 10 / 30 10. 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 11 / 30 11. 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 12 / 30 12. What is the name of the largest moon of Saturn? a) Enceladus b) Titan c) Mimas d) Rhea 13 / 30 13. 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 14 / 30 14. 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 15 / 30 15. 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 16 / 30 16. Which space probe is currently studying Jupiter's atmosphere, magnetic field, and composition? a) New Horizons b) Juno c) Curiosity d) Opportunity 17 / 30 17. 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 18 / 30 18. Which comet is known for its exceptionally long tail and was visible to the naked eye for several months in 1997? a) Halley's Comet b) Comet Hale-Bopp c) Comet Shoemaker-Levy 9 d) Comet Hyakutake 19 / 30 19. Which moon of Jupiter is known for its bright, highly reflective surface and its distinctive grooved terrain? a) Io b) Europa c) Ganymede d) Callisto 20 / 30 20. Which meteorite is known for containing abundant organic compounds and is believed to be a remnant of the early Solar System? a) Allende b) Hoba c) Canyon Diablo d) Tunguska 21 / 30 21. 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 22 / 30 22. Which asteroid is the target of the Hayabusa2 mission, which aimed to return a sample to Earth? a) Ryugu b) Bennu c) Itokawa d) Mathilde 23 / 30 23. Which mission provided the first detailed radar maps of Venus's surface? a) Mariner 2 b) Magellan c) Pioneer Venus d) Venera 7 24 / 30 24. What is the name of the largest volcano on Venus? a) Mauna Kea b) Olympus Mons c) Maxwell Montes d) Maat Mons 25 / 30 25. 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 26 / 30 26. Which moon of Jupiter is the most heavily cratered body in the Solar System, indicating its ancient surface? a) Io b) Europa c) Ganymede d) Callisto 27 / 30 27. Which space telescope is famous for its stunning images of distant galaxies, nebulae, and star clusters? a) Hubble Space Telescope b) James Webb Space Telescope c) Keck Observatory d) Chandra X-ray Observatory 28 / 30 28. 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 29 / 30 29. What is the phenomenon called when the solar wind compresses Earth's magnetosphere on the side facing the Sun? a) Magnetotail b) Bow Shock c) Magnetopause d) Solar Flare 30 / 30 30. Which mission is currently orbiting Mercury to study its surface and composition? a) Cassini b) Juno c) MESSENGER d) New Horizons 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