Solar System Online Test

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

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

3. What is the main composition of objects found in the Kuiper Belt?

4. What is the name of the hexagonal cloud pattern observed at Saturn's north pole?

5. What is the name of the phase of the Moon when it is fully illuminated as seen from Earth?

6. What is the approximate diameter of Jupiter's Great Red Spot?

7. What is the layer of soil that contains organic matter, microorganisms, and plant roots, and is vital for supporting plant growth?

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

9. Which moon of Saturn is known for its active geysers erupting from its south pole, indicating the presence of a subsurface ocean?

10. 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?

11. 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?

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

13. What percentage of Earth's atmosphere is composed of nitrogen?

14. 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?

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

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

17. What is the name of the volcanic moon of Jupiter known for its intense volcanic activity?

18. Which region of a comet's structure is primarily composed of water vapor, carbon dioxide, and other volatile substances?

19. Which space probe was the first to visit the asteroid belt and to make direct observations of Jupiter?

20. Which ground-based telescope is the world's largest single-aperture optical telescope and is located in the Canary Islands, Spain?

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

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

23. What is the name of the largest moon in the Solar System, which orbits the gas giant Jupiter and is larger than the planet Mercury?

24. Which space probe was launched to study Pluto and the Kuiper Belt objects beyond it?

25. What is the primary component of Uranus's atmosphere?

26. 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?

27. Which planet in the Solar System exhibits extensive canyon systems, including Valles Marineris, which is considered the largest canyon in the Solar System?

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

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

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