Solar System Online Test

1. Which spacecraft conducted a close-up study of Ceres, revealing bright spots and other intriguing features on its surface?

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

3. What is the name of the large, high-altitude vortex observed at Venus' south pole?

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

5. What is the name of the phenomenon where tidal forces cause a celestial body to become elongated along the axis pointing toward the attracting body?

6. What is the potential significance of recent discoveries of subsurface water ice on Mars?

7. What was the approximate length of the tail of Comet Hale-Bopp during its peak brightness in 1997?

8. Which space probe conducted a flyby of Pluto in 2015, providing the first close-up images of the dwarf planet?

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

10. How does the atmospheric pressure at the surface of Venus compare to Earth's?

11. Which mission provided the first detailed radar maps of Venus's surface?

12. Which moon of Jupiter is thought to have a subsurface ocean beneath its icy crust, similar to Europa, but with a greater depth and complexity?

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

14. Which asteroid is the largest object in the Asteroid Belt?

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

16. Which of the following is NOT a type of rock formed by the process of weathering and erosion?

17. What is the most prominent feature of Neptune's atmosphere?

18. Which asteroid is known for its elongated shape and rapid rotation, resembling a spinning top?

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

20. Which effect of tidal forces is responsible for the gradual recession of the Moon from Earth and the lengthening of Earth's day?

21. Which moon of Neptune is the largest and most notable, with a retrograde orbit and active geysers spewing nitrogen gas and icy particles?

22. What is the largest gap in Saturn's rings, located between the A ring and the B ring?

23. What effect do tidal forces have on celestial bodies?

24. 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?

25. What is the approximate diameter of Jupiter's Great Red Spot?

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

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

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

29. What causes the extreme greenhouse effect on Venus?

30. What is the name of the largest meteorite ever found on Earth?