<human>:  What is the difference between a meteor and a comet?
<bot>: The main difference between a meteor and a comet is that a meteor is made up of bits of dust and rock that burns up in the atmosphere, while a comet is a much more solid body made of dust, ice, and rock, and it usually has a visible coma and sometimes a tail of dust and gas. Meteors usually burn up quickly and are only visible for a few seconds, while comets may be visible for several days or longer.