Solar System Online Test

1. Which moon of Jupiter is the largest moon in the Solar System, even larger than the planet Mercury?

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

3. Which layer of the Earth's atmosphere contains most of the weather phenomena?

4. What is the term for a meteoroid that originates from a comet or asteroid and travels through space?

5. How do solar storms, like coronal mass ejections, affect the occurrence of auroras?

6. Which layer of the Earth's atmosphere contains the ozone layer?

7. Which space probe recently completed its mission by crashing into the surface of Comet 67P/Churyumov-Gerasimenko?

8. What is the name of the moon of Saturn with a distinctive two-toned appearance, caused by impact cratering?

9. Which moon of Neptune is the largest and seventh-largest moon in the solar system?

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

11. Which moon of Saturn is known for its thick atmosphere and lakes of liquid methane and ethane on its surface?

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

13. What is the region called where the solar wind slows down and merges with the interstellar medium?

14. What is the term for the phase of the Moon when only a small portion of its surface is illuminated, appearing as a thin crescent?

15. What is the lithosphere?

16. Which asteroid is known for its large impact crater named Rheasilvia Basin?

17. What is the name of the largest moon of Saturn?

18. What is the name of the phenomenon where a planet or moon passes directly between a star and the observer, causing a temporary decrease in the star's brightness?

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

20. What is the name of the phase of the Moon when it is fully illuminated as seen from Earth?

21. Which comet fragmented and collided with Jupiter in 1994, producing a series of impact events observed by astronomers?

22. What is the name of the process by which rocks are transformed into new types of rocks through heat and pressure?

23. What is the rotational period of Earth?

24. Which spacecraft conducted the first soft landing on the far side of the Moon in 2019, deploying the Yutu-2 rover?

25. Which celestial body exhibits significant tidal heating, resulting in geologically active features such as cryovolcanoes?

26. Which element, essential for life, has been detected in the form of methane on Mars?

27. 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?

28. What is the name of the moon of Haumea that orbits within its elongated shape?

29. What is the phenomenon called where Mercury exhibits phases similar to the Moon and Venus?

30. What characteristic makes Mercury unique among the terrestrial planets?