Solar system mysteries • English Conversation Questions

What are some of the biggest mysteries of the solar system?
What is dark matter and how does it relate to the solar system?
What is the Kuiper belt and what mysteries does it hold?
What are some of the unexplained phenomena observed in the solar system?
What is the “Great Divide” and why is it a mystery?
What is the role of magnetic fields in the solar system?
What is the “Mars methane mystery” and why is it important?
What are some of the mysteries of the outer planets?
What is the origin of water in the solar system and how is it a mystery?
What are some of the unresolved questions about the sun and its behavior?
How might future missions and discoveries help us solve some of these mysteries?