| A | B |
|---|
| expert | someone who is skilled or knows a lot about something |
| gravity | the force that pulls objects in space closer to each other or a planet's surface |
| follow | to watch or keep track of something as it moves |
| orbit | the path that objects follow around the sun |
| telescope | a tool that makes farway objects seem larger and closer |
| asteroids | big rocks found in space |
| accident | a crash or fall that happens by mistake |
| attempt | to try |
| complete | to finish |
| hope | to believe good things will happen |
| purpose | reason or goal |
| support | to help, encourage, or cheer for |
