Solar System Online Test

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

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

3. 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?

4. What is the name of the moon of Saturn with a distinctive two-toned appearance, caused by impact cratering?

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

6. What is the name of the spacecraft that discovered geysers erupting from beneath the icy surface of Saturn's moon, Enceladus?

7. Which moon of Uranus is unique for its extreme axial tilt, causing it to essentially orbit the planet on its side?

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

9. 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?

10. Which geological feature on Earth is the result of the collision between tectonic plates, leading to the formation of mountain ranges?

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

12. Which moon of Jupiter is known for its smooth, icy surface with long cracks and streaks caused by tidal forces?

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

14. What is the heliosphere?

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

16. Which of the following is NOT a layer of the Earth's interior?

17. Which space probe is currently studying the internal structure and seismic activity of Mars, aiming to understand its geological history?

18. What is the primary component of Ceres's surface?

19. What is the name of the vast, heart-shaped region observed on Pluto's surface, which is informally named after the famous Disney character?

20. What is the name of the tallest mountain on the Moon, located near the southwestern edge of the Imbrium Basin?

21. What is the name of the robotic rover currently exploring the surface of Mars?

22. What is the name of the process by which rocks are broken down into smaller fragments through physical, chemical, or biological means?

23. What are substorms in the context of Earth's magnetosphere?

24. Which spacecraft was the first to successfully land humans on the Moon?

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

26. What are the primary components of the solar wind?

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

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

29. What is the name of the large, dark plains on the Moon's surface, formed by ancient volcanic eruptions?

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