Solar System Online Test

1. What is the approximate length of one day on Venus (one complete rotation)?

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

3. Which moon of Neptune is known for its irregular shape and heavily cratered surface?

4. What is the name of the process by which rocks are transformed into new types of rocks through heat and pressure?

5. Which layer of the Earth's atmosphere is closest to the planet's surface?

6. Which space probe recently completed its mission by crashing into the surface of Comet 67P/Churyumov-Gerasimenko?

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

8. Which surface feature on Venus is a vast, elevated region similar to continents on Earth?

9. What is the name of the giant storm system observed on Neptune?

10. What is the name of the largest moon of Saturn?

11. Which type of tail of a comet is composed of ionized gas and is pushed away from the Sun by the solar wind?

12. What is the name of the phenomenon where a planet or moon passes directly between a star and the observer, causing a temporary decrease in the star's brightness?

13. What is the name of the second-largest moon of Pluto?

14. What is the state of Mercury's atmosphere?

15. Which comet is the most famous and well-known, with a regular period of approximately 76 years?

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

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

18. Which moon of Neptune is known for its retrograde orbit, meaning it orbits the planet in the opposite direction of Neptune's rotation?

19. What is the name of the valley network system on Mars that suggests past water erosion?

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

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

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

23. 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?

24. What is the name of the large impact crater on the Moon's surface that contains the Sea of Tranquility, where Apollo 11 landed?

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

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

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

28. What is the name of a small rocky or metallic body in space that enters Earth's atmosphere and produces a streak of light?

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

30. Which space probe successfully explored the dwarf planet Ceres in the asteroid belt, providing valuable data on its surface composition and features?