- Why is there an asteroid belt?
- How are meteorites related to asteroids?
- How do comets get their tails?
- Where do comets come from?
- How big can a comet be?
- What are Pluto and other large objects of the Kuiper belt like?
- Can a meteorite hit Earth?
- Name a few comets.
- What is comet PANSTARRS?
- Was the meteorite in Russia last month previously an asteroid?
Hint: Check Wikipedia
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