ocr: Meteors, meteorites, and asteroids Millions of chunks of rock orbit the Sun. These are asteroids, which are sometimes called the minor planets. Asteroids range 1n1 size from a few meters across to hundreds of kilometers. Most of them are found ina wide region between the orbits ofl Mars and Jupiter known as the asteroid belt. Every day, thousands of dust particles and rock fragments from space enter the Earth's atmosphere. Most burn up due to friction with the air. The streaks of light they produce are called meteors. Very rarely, much larger pieces hit the Earth's surface. These space rocks a ...