| A | B |
|---|
| ellipse | the shape of a flattened circle |
| solar system | the sun, the nine planets and their moons, and other objects that orbit the sun |
| satellite | an object that revolves around another object |
| rotation | one full spin of an object around an axis |
| orbit | the path of an object around another object |
| revolution | the movement of an object around another object |
| meteorite | a rock from space that has passed through Earth's air and landed on the ground |
| meteor | a piece of rock or dust from space burning up in Earth's air |
| constellation | a group of stars that form a pattern |
| asteroid | a rocky object orbiting the sun between the planets |
| axis | an imainary line through a spinning object |
| comet | a frozen chunk of ice and dust that orbits the sun |
