Solar System Online Test

1. What is the primary component of Eris's surface?

2. Which meteorite impact created the Barringer Crater in Arizona, USA?

3. Which moon of Jupiter is known for its heavily cratered surface, indicating its ancient geological history and lack of significant geological activity?

4. What is axial tilt in planetary astronomy?

5. What is the potential significance of recurring slope lineae (RSL) observed on Mars?

6. Which space probe is currently studying the polar regions and atmosphere of Mars, searching for signs of past or present life?

7. What is the term for the gradual wearing away of the Earth's surface by natural processes such as wind, water, and ice?

8. What is the name of the largest moon of Neptune?

9. How many rings does Uranus have?

10. What is the approximate distance from the Sun to the inner edge of the Asteroid Belt?

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. Which planet in the Solar System has a thick atmosphere composed mainly of carbon dioxide, with surface pressures about 92 times that of Earth?

13. Which space probe conducted the first flyby of Saturn and provided detailed images of its rings and moons?

14. Which dwarf planet is known for its reddish surface color, likely due to the presence of organic compounds?

15. Which space telescope is designed to search for Earth-like planets orbiting other stars and is scheduled for launch in the 2020s?

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

17. What is the name of the space telescope launched by NASA in 1990, which has provided breathtaking images and groundbreaking discoveries in astronomy?

18. 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?

19. What is the central solid core of a comet called?

20. Which spacecraft provided the first close-up images and data of Uranus and its moons?

21. Which meteorite is known for containing abundant organic compounds and is believed to be a remnant of the early Solar System?

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

23. Which moon of Jupiter is thought to have a subsurface ocean beneath its icy crust, potentially harboring conditions suitable for life?

24. According to Kepler's first law of planetary motion, what shape do planetary orbits trace around the Sun?

25. Which asteroid is the target of the NASA OSIRIS-REx mission, which aims to return a sample to Earth?

26. Which moon of Jupiter has the highest density among the Galilean moons, indicating a significant amount of rocky material in its composition?

27. What is the name of the prominent gap in Saturn's rings, caused by the gravitational influence of the moon Mimas?

28. Which asteroid is the third-largest object in the Asteroid Belt?

29. Which of the following is NOT a greenhouse gas?

30. What is unique about Triton's orbit around Neptune?