Comet, meteor and asteroid
- a celestial object consisting of a nucleus of ice and dust and, when near the sun
- 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.
- a small rocky body orbiting the sun. Large numbers of these, ranging enormously in size, are found between the orbits of Mars and Jupiter, though some have more eccentric orbits.
Did you know the difference?