A comet is a O meteoroid that travels through Earth’s atmosphere and hits the surface.
O meteoroid that burns up in Earth’s atmosphere, producing a streak of light.
O small, rocky object that orbits the Sun and is usually found in a belt between the orbits of Mars and Jupiter.
O small object made of ice and dust that orbits the Sun and forms a coma as it approaches the Sun.

Comets are cosmic snowballs of frozen gases, rock and dust that orbit the Sun. When frozen, they are the size of a small town. ... The dust and gases form a tail that stretches away from the Sun for millions of miles. There are likely billions of comets orbiting our Sun in the Kuiper Belt and even more distant Oort Cloud.

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