Solar System Online Test

1. What is the name of the largest feature on Pluto's surface, which is a heart-shaped region?

2. What is the biosphere?

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

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

5. What geological feature on Mars is believed to be the largest volcano in the Solar System by volume and is named after the Roman god of war?

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

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

8. Which moon of Saturn is the largest and most notable, with a thick atmosphere and lakes of liquid hydrocarbons on its surface?

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

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

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

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

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

14. Which celestial body exhibits significant tidal forces from both Jupiter and Saturn, resulting in its elongated shape and active cryovolcanism?

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

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

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

18. What is the name of the largest moon of Uranus?

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

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

21. Which gas giant planet exhibits alternating bands of clouds in its atmosphere, known as belts and zones, caused by powerful atmospheric jet streams?

22. What effect do tidal forces have on celestial bodies?

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

24. What is the effect of a strong solar wind on satellites in orbit around Earth?

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

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

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

28. What is the name of the spacecraft launched by the European Space Agency (ESA) and the Japan Aerospace Exploration Agency (JAXA) to study Mercury?

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

30. What is the primary composition of Mercury's surface?