The different types of space rock

Asteroid: A chunk of rock left over from collisions in the early solar system.

Comet: A ball of ice, rock, methane, and other compounds.

Meteoroid: A piece of rock which burns up in the atmosphere.

Meteor: What astronomers call a flash of light in the atmosphere when debris burns up 

Meteorite: Rock that makes it through the atmosphere to the planet's surface.  

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