This week, Jud, AJ, and guest Nate Pinto get a close look at all the rocky debris filling up our solar system. They'll explain the difference between asteroids, comets, and meteors, and see what they can tell us about space history. Plus, they'll discuss the rarity and destructive power of a collision with Earth, and whether we could stop an incoming rock - or even see it coming...

Additional Topics Include: A new Star Wars movie, the fastest man-made object, and what makes a planet a "dwarf" planet.

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