| A | B |
|---|
| space station | orbiting manned structure that can be used for a variety of purposes |
| satellite | device launched into orbit around the earth |
| debate | a discussion involving opposing viewpoints |
| capsule | a sealed cabin for aride in space |
| probe | unmanned spacecraft designed to explore the solar system |
| module | a separate component which can be assembled into a bigger unit. |
| centrifuge | a compartment spun around a central axis to separate materials |
| truss | to furnish or support |
| lunar | moon |
| internal | inside |
| lifeboat | craft used when main craft has failed |
| fault | a weak spot |
| docking | a landing pier |
| radiator | a device used for cooling circulating water |
