Solar System Online Test

1. Which comet is famous for its spectacular breakup into multiple fragments, which collided with Jupiter in 1994?

2. Which comet made a close approach to Earth in 1996, becoming widely visible to the naked eye?

3. What is the name of the tallest mountain on Mars, often compared to Mount Everest on Earth?

4. Which moon of Jupiter was discovered by Galileo Galilei in 1610, making it one of the first objects observed in orbit around another planet?

5. What is the average surface temperature on Venus?

6. What is the name of the bright, elongated stream of gas and dust extending from the coma of a comet?

7. What is the process by which sedimentary rocks are formed through the compaction and cementation of sediments?

8. What effect does tidal heating have on celestial bodies?

9. What is the primary component of Neptune's atmosphere?

10. 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?

11. What type of rock is formed from the cooling and solidification of magma or lava?

12. Which moon of Uranus is known for its unusual, roughly spherical shape, with a diameter about one-third that of our Moon?

13. What is the name of a meteoroid that survives its passage through Earth's atmosphere and strikes the ground?

14. What is the primary cause of auroras on Earth?

15. Which comet is the most famous and well-known, with a regular period of approximately 76 years?

16. 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?

17. What is the name of the moon of Jupiter with a subsurface ocean that may harbor conditions suitable for life?

18. What is the primary composition of objects found in the Oort Cloud?

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

20. What is the name of the group of four large moons of Jupiter discovered by Galileo?

21. Which space probe was launched to study Pluto and the Kuiper Belt objects beyond it?

22. What is axial tilt in planetary astronomy?

23. What is the Kuiper Belt?

24. Which moon of Jupiter has a thin atmosphere composed mostly of carbon dioxide, with surface pressures less than one-thousandth of Earth's?

25. What is the name of the large, dark plains on the Moon's surface, formed by ancient volcanic eruptions?

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

27. What is the name of the first successful Mars rover mission, launched by NASA in 1996, which provided valuable data on the Martian surface and atmosphere?

28. What is the name of the region on Pluto characterized by dark, heavily cratered terrain?

29. What is the name of the massive, swirling storm system observed at Saturn's south pole?

30. What is the name of the largest volcano on Venus?