Solar System Online Test

1. Which of the following is NOT a layer of the Earth's interior?

2. Which comet is known for its exceptionally long tail and was visible to the naked eye for several months in 1997?

3. 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?

4. What are the high-altitude clouds on Venus primarily composed of?

5. What is the name of the largest impact basin on Mars, covering a vast region of the planet's southern hemisphere?

6. Which space probe carried a golden record containing sounds and images of Earth, intended as a message to potential extraterrestrial civilizations?

7. How many major rings does Saturn's ring system consist of?

8. Which moon of Saturn is the only moon in the Solar System known to have a dense atmosphere, primarily composed of nitrogen?

9. Which moon of Neptune is known for its irregular shape and heavily cratered surface?

10. 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?

11. 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?

12. 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?

13. What is the name of the meteorite that is believed to have brought organic molecules and water to Earth, potentially contributing to the origin of life?

14. What is the name of the valley network system on Mars that suggests past water erosion?

15. What is the name of the region around Earth where charged particles are trapped by the planet's magnetic field?

16. Which moon of Mars is closer to the planet?

17. Which space probe is currently studying the internal structure and seismic activity of Mars, aiming to understand its geological history?

18. Which space probe was the first to visit the asteroid belt and to make direct observations of Jupiter?

19. Which gas giant planet exhibits alternating bands of clouds in its atmosphere, known as belts and zones, caused by powerful atmospheric jet streams?

20. Which type of tail of a comet is composed of ionized gas and is pushed away from the Sun by the solar wind?

21. During which solar event are auroras most likely to be observed?

22. Which canyon system on Mars is the largest in the solar system?

23. What is the name of the dark, vortical storm system observed at Neptune's equator?

24. Which moon of Jupiter is known for its highly active surface geology, with extensive cryovolcanism and icy geysers?

25. Which geological feature on Earth is the result of the collision between tectonic plates, leading to the formation of mountain ranges?

26. What is the name of the hexagonal cloud pattern observed at Saturn's north pole?

27. Which space probe is currently studying Jupiter's atmosphere, magnetic field, and composition?

28. Which moon of Saturn exhibits extensive cryovolcanism, with geysers erupting from its south polar region?

29. What is tidal locking?

30. Which ground-based observatory is operated by the European Southern Observatory (ESO) and consists of four individual telescopes located in Chile?