Solar System Online Test

1. What is the name of the region in the Solar System where long-period comets originate, extending to the outermost reaches of the Sun's gravitational influence?

2. Which asteroid is the target of the Hayabusa2 mission, which aimed to return a sample to Earth?

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

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

5. What geological feature on Mercury suggests it has contracted over time?

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

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

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

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

10. 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?

11. Which moon of Uranus is known for its heavily cratered surface and bright, icy terrain?

12. What is the name of the faint, outermost ring of Saturn discovered by the Voyager spacecraft?

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

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

15. Which moon of Neptune is the largest and seventh-largest moon in the solar system?

16. Which moon of Neptune is thought to be a captured Kuiper Belt object, based on its retrograde orbit and unique composition?

17. What geological feature on Mars is believed to be the largest volcano in the Solar System by volume and is named after the Roman god of war?

18. What is the most prominent feature of Saturn?

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

20. Which moon of Saturn is known for its complex geological features, including cryovolcanoes, and the famous "tiger stripes" at its south pole?

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

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

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

24. Which space telescope is set to succeed the Hubble Space Telescope and is designed to observe the universe in the infrared spectrum?

25. What is the name of the asteroid belt object that was visited by the Japanese spacecraft Hayabusa2?

26. Which celestial body exhibits significant tidal heating, resulting in geologically active features such as cryovolcanoes?

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

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

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

30. Which spacecraft was the first to visit Mercury?