Solar System Online Test

1. 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?

2. What is the name of the prominent storm observed on Neptune's atmosphere that disappeared after a few years?

3. What is the name of the spacecraft that discovered geysers erupting from beneath the icy surface of Saturn's moon, Enceladus?

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

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

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

7. Which space probe conducted flybys of Jupiter and Saturn before embarking on a trajectory to leave the Solar System in a different direction from Voyager 1?

8. What is the name of the largest known object in the asteroid belt between Mars and Jupiter?

9. Which moon of Saturn exhibits a prominent equatorial ridge that encircles its entire circumference, giving it a distinct walnut-like shape?

10. What is the name of the vast, heart-shaped region observed on Pluto's surface, which is informally named after the famous Disney character?

11. 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?

12. What is the average surface temperature on Venus?

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

14. Which moon of Uranus is the smallest and most irregularly shaped, with a surface marked by numerous grooves and cliffs?

15. Which gas giant planet has the fastest winds in the Solar System, with wind speeds reaching up to 2,100 kilometers per hour (about 1,305 miles per hour)?

16. What is the most prominent feature of Saturn?

17. Which biome is characterized by tall grasses, few trees, and a distinct rainy and dry season?

18. What is the name of the largest impact basin on Mars, covering a vast region of the planet's southern hemisphere?

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

20. What is the name of the meteorite that is believed to have brought organic molecules and water to Earth, potentially contributing to the origin of life?

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

22. Which moon of Jupiter is known for its highly active surface geology, with extensive cryovolcanism and icy geysers?

23. What is the name of the largest impact crater on the Moon, located on the lunar near side and visible from Earth?

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

25. What is the name of the robotic rover currently exploring the surface of Mars?

26. What is the name of the tallest mountain on the Moon, located near the southwestern edge of the Imbrium Basin?

27. What is the name of the largest moon of Uranus?

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

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

30. Which of the following is NOT a layer of the Earth's interior?