Solar System Online Test

1. What is the primary greenhouse gas in Earth's atmosphere?

2. How does the temperature on Mercury's surface vary?

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

4. Which moon of Mars is closer to the planet?

5. Which layer of the Earth's atmosphere contains most of the weather phenomena?

6. 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?

7. 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?

8. Which asteroid is known for its large impact crater named Rheasilvia Basin?

9. Which space probe became the first human-made object to reach interstellar space?

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

11. Which moon of Jupiter is thought to have a subsurface ocean beneath its icy crust, similar to Europa, but with a greater depth and complexity?

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

13. What is the solar wind?

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

15. Which space probe conducted a flyby of Pluto in 2015, providing the first close-up images of the dwarf planet?

16. Which space probe is currently studying Jupiter's atmosphere, magnetic field, and composition?

17. What is the most prominent feature of Saturn?

18. Which comet is known for its exceptionally long tail and was visible to the naked eye for several months in 1997?

19. Which moon of Jupiter is known for its bright, highly reflective surface and its distinctive grooved terrain?

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

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

22. Which asteroid is the target of the Hayabusa2 mission, which aimed to return a sample to Earth?

23. Which mission provided the first detailed radar maps of Venus's surface?

24. What is the name of the largest volcano on Venus?

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

26. Which moon of Jupiter is the most heavily cratered body in the Solar System, indicating its ancient surface?

27. Which space telescope is famous for its stunning images of distant galaxies, nebulae, and star clusters?

28. 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?

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

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