Astroids, Comets, Meteorites
By: Jared BAier
METEROID
A small body moving in the solar system that would become a meteor if it entered the earth's atmosphere.
METEOR
A small body of matter from outer space that enters the earth's atmosphere, becoming incandescent as a result of friction and appearing as a streak of light.
METEORITE
A solid piece of debris, from such sources as asteroids or comets, that originates in outer space and survives its impact with the Earth's surface.
HALLEY'S COMET
Halley is the only short-period comet that is clearly visible to the naked eye from Earth, and the only naked-eye comet that might appear twice in a human lifetime.