| A | B |
| astronaut | a person who goes into space |
| shuttle | a vechicle that carries astronauts into space |
| experiment | test to find out something |
| telescope | an instrument that makes things far away to be close |
| gravity | the natural force that makes everything on Earth move toward it |
| ascend | to go up |
| descend | to go down |
| orbit | the path like a spacecraft or planet around something in space |
| universe | the Earth, the sun, the moon, and all the other planets and stars in the sky |
| enormous | very big and proud |
| journey | a long trip |
| launch | when yo get something going |
| meteorite | a piece of stone from space that hits something |