Solar System Online Test

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

2. Which mission is currently orbiting Mercury to study its surface and composition?

3. How many rings does Uranus have?

4. What is the name of the comet that made a close approach to Earth in 1997, becoming one of the brightest comets of the 20th century?

5. What is the name of the dwarf planet located in the Kuiper Belt, known for its elongated shape and rapid rotation?

6. Which elements in Earth's atmosphere are responsible for the green and red colors in auroras?

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

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

9. What is the name of the asteroid belt object that was visited by the Japanese spacecraft Hayabusa2?

10. What is axial tilt in planetary astronomy?

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

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

13. Which effect of tidal forces is responsible for the gradual recession of the Moon from Earth and the lengthening of Earth's day?

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

15. What is the region called where the solar wind slows down and merges with the interstellar medium?

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

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

18. What is the name of the valley network system on Mars that suggests past water erosion?

19. What is the name of the moon of Pluto discovered in 2011 and named after the three-headed dog that guards the entrance to the underworld in Greek mythology?

20. What is the name of the massive, swirling storm system observed at Saturn's south pole?

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

22. Which of the following is NOT a type of plate boundary?

23. What is the name of the largest volcano in the solar system, located on Mars?

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

25. What is the name of the moon of Jupiter with a subsurface ocean that may harbor conditions suitable for life?

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

27. Which moon of Saturn is known for its dense atmosphere, which is primarily composed of nitrogen and methane, and its hydrocarbon lakes and seas on its surface?

28. What is the name of the phenomenon where tidal forces cause a celestial body to become elongated along the axis pointing toward the attracting body?

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

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