In our solar system, the interplanetary region has chunks of matter (much smaller in size compared to planets) called asteroids. They:
| 1. | will not move around the sun, since they have very small masses compared to the sun. |
| 2. | will move in an irregular way because of their small masses and will drift away into outer space. |
| 3. | will move around the sun in closed orbits but not obey Kepler’s laws. |
| 4. | will move in orbits like planets and obey Kepler’s laws. |
