| A | B |
|---|
| refracting telescope | Instrument that uses two lenses for viewing distant objects. |
| reflecting telescope | Instrument for viewing distant objects that uses a curved mirror. |
| meteorite | Material from space that lands on Earth. |
| constellation | Pattern of stars in the night sky. |
| revolution | The movement of an object around another object or point. |
| rotation | Spinning motion of an object on its axis. |
| planet | Large body in space that orbits a star and does not produce light of its own. |
| axis | Imaginary line on which an object rotates. |
| star | Huge globe of hot gasses that shines by its own light. |
| comet | Small space object that orbits a star and can have a tail. |
| meteor | Piece of rock or metal from space that enters Earth's atmosphere. |
