        “They’re just little rocks that fly around,” Twilight explained.  “Sometimes, they fall to earth, but they’re called meteors then.  Didn’t you watch the shower a couple of years ago?  I remember I saw Bon Bon there.  Before Luna started collecting them, some of the bigger ones crashed into the ground and caused all sorts of problems.  In fact, there’s an old mare’s tale that says that the eternal winter wasn’t caused by Windigos, but a big meteor that crashed out in the desert.”