The region between the orbits of Mars and Jupiter is filled with asteroids, bodies that might otherwise have coalesced into a planet if not for the immense gravitational force of Jupiter. The belt contains many thousands of objects, ranging in size from the dwarf planetCeres down to individual particles of dust.
A region of space between two and three times further from away than the Earth from the
Sun, between the orbits of
Mars and Jupiter. It is the home to the majority of the
Solar System's population of asteroids.