Solar System Online Test

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

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

3. Which of the following is NOT a greenhouse gas?

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

5. Which planet in the Solar System has a thick atmosphere composed mainly of carbon dioxide, with surface pressures about 92 times that of Earth?

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

7. Which process is responsible for the movement of tectonic plates?

8. What is the most notable feature of Uranus's atmosphere?

9. Which element, essential for life, has been detected in the form of methane on Mars?

10. What is the estimated total number of icy bodies in the Oort Cloud?

11. How many moons does Mars have?

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

13. What is the largest gap in Saturn's rings, located between the A ring and the B ring?

14. What is the name of the spacecraft that orbited Saturn and its moons, providing detailed observations and data?

15. Which meteorite is known for containing abundant organic compounds and is believed to be a remnant of the early Solar System?

16. What is unique about Uranus's rotation axis compared to other planets in the Solar System?

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

18. What is the name of the process by which rocks are transformed into new types of rocks through heat and pressure?

19. 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?

20. Which comet made a close approach to Earth in 1996, becoming widely visible to the naked eye?

21. Which celestial body exhibits significant tidal heating, resulting in geologically active features such as cryovolcanoes?

22. Which asteroid is the third-largest object in the Asteroid Belt?

23. Which spacecraft conducted a flyby of Pluto, providing the first close-up images and data of the dwarf planet?

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

25. Which space probe conducted the first flyby of Saturn and provided detailed images of its rings and moons?

26. Which spacecraft provided the first close-up images and data of Neptune and its moons?

27. What is the name of the first successful Mars rover mission, launched by NASA in 1996, which provided valuable data on the Martian surface and atmosphere?

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

29. What is the rotational period of Earth?

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