Solar System Online Test

1. Which planet in the Solar System experiences the strongest winds, with wind speeds reaching up to 1,800 kilometers per hour (about 1,118 miles per hour)?

2. What is the largest moon of Pluto?

3. Which gas is present in Pluto's thin atmosphere?

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

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

6. Which layer of the Earth's interior is divided into the outer and inner layers?

7. What is the biosphere?

8. Which moon of Jupiter is the largest in the solar system?

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

10. Which canyon system on Mars is the largest in the solar system?

11. What is the name of the tallest mountain on Mars, often compared to Mount Everest on Earth?

12. Which spacecraft conducted a flyby of Pluto and explored the Kuiper Belt object Arrokoth?

13. Which moon of Saturn is believed to have a subsurface ocean beneath its icy crust?

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

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

16. How many major rings does Saturn's ring system consist of?

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

18. What term refers to the bright streak of light produced when a meteoroid burns up in Earth's atmosphere?

19. Which spacecraft conducted the first soft landing on the far side of the Moon in 2019, deploying the Yutu-2 rover?

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

21. What is the rotational period of Earth?

22. Which mission is currently orbiting Mercury to study its surface and composition?

23. Which space probe provided the first close-up images of Jupiter and Saturn?

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. How does solar wind contribute to the creation of auroras on Earth?

26. What is the term for the process by which sediments are deposited in a new location?

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

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

29. What is the name of the meteorite that produced the largest observed meteor airburst event in recorded history?

30. Which space probe was the first to fly by Jupiter, Saturn, Uranus, and Neptune, providing detailed data on these gas giants and their moons?