Solar System Online Test

1. What is the name of the moon of Pluto discovered in 2005 and named after the ferryman of the underworld in Greek mythology?

2. Which Mars rover was launched in 2011 and has been exploring Gale Crater since its landing in 2012?

3. Which moon of Saturn is thought to have subsurface oceans beneath its icy crust, similar to Europa and Enceladus?

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

5. Which instrument on spacecraft is used to measure the impact of the solar wind on Earth's magnetosphere?

6. What is the primary composition of Mercury's surface?

7. What are substorms in the context of Earth's magnetosphere?

8. What is the name of the spacecraft that successfully landed the Huygens probe on Saturn's largest moon, Titan, in 2005?

9. Which moon of Saturn is known for its dense atmosphere, which is primarily composed of nitrogen and methane, and its hydrocarbon lakes and seas on its surface?

10. Which spacecraft was the first to visit Mercury?

11. 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?

12. Which comet is known for its bright appearance and greenish coma due to the presence of cyanogen and diatomic carbon?

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

14. Which phenomenon is caused by tidal forces and results in the slowing of a celestial body's rotation?

15. What is the lithosphere?

16. What is the approximate diameter of Uranus?

17. Which region of the Sun is responsible for the acceleration of the solar wind?

18. What is the name of the asteroid belt object that was visited by the Dawn spacecraft in 2011?

19. How does the solar wind affect Earth's magnetosphere?

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

21. What term refers to the fuzzy, glowing region surrounding the nucleus of a comet?

22. What is the most notable feature of Uranus's atmosphere?

23. What term refers to the bright streak of light produced when a meteoroid burns up in Earth's atmosphere?

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

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

26. Which Apollo mission was the last to land humans on the Moon's surface?

27. Which moon of Jupiter is known for its smooth, icy surface with long cracks and streaks caused by tidal forces?

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

29. Which spacecraft provided close-up images of Jupiter and its moons in the 1990s?

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