Solar System Online Test

1. What is the name of the largest moon of Jupiter?

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

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

4. Which comet is often referred to as "the Great Comet of 1910" due to its spectacular appearance and close approach to Earth?

5. What is axial tilt in planetary astronomy?

6. What is the name of the intense radiation belt surrounding Jupiter?

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

8. What is the phenomenon called when the solar wind compresses Earth's magnetosphere on the side facing the Sun?

9. Which space probe provided the first close-up images of the asteroid Vesta and the dwarf planet Ceres in the asteroid belt?

10. What is the name of the spacecraft that became the first human-made object to reach interstellar space in 2012?

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

12. What is the term for the movement of water from the Earth's surface into the atmosphere through evaporation from bodies of water and transpiration from plants?

13. Which moon of Uranus is known for its unusual, roughly spherical shape, with a diameter about one-third that of our Moon?

14. What is the term for the process by which plants convert carbon dioxide and water into glucose and oxygen using sunlight?

15. Which space probe is currently studying the polar regions and atmosphere of Mars, searching for signs of past or present life?

16. Which ground-based observatory is operated by the European Southern Observatory (ESO) and consists of four individual telescopes located in Chile?

17. Which dwarf planet is notable for its elongated shape and rapid rotation?

18. How does the solar wind affect Earth's magnetosphere?

19. What is the name of the region around Earth where charged particles are trapped by the planet's magnetic field?

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

21. Which feature is the largest impact crater on Mercury?

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

23. What was the last appearance of Halley's Comet before its most recent return in 1986?

24. What causes the extreme greenhouse effect on Venus?

25. Which space probe became the first human-made object to reach interstellar space?

26. Which comet fragmented and collided with Jupiter in 1994, producing a series of impact events observed by astronomers?

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

28. Which spacecraft, launched by NASA in 2006, conducted a historic flyby of Pluto in 2015, providing the first detailed images of the dwarf planet and its moons?

29. What is the primary component of Jupiter's atmosphere?

30. What is the process by which water vapor changes into liquid water?