| A | B |
|---|
| altitude | The distance in height of an object relative to sea level. |
| nautical mile | A unit of length used in sea and air navigation that is equal to 1.15 miles. |
| module | A unit of a spacecraft that performs a specific task for supporting the overall spacecraft. |
| component | One of many parts that make up a system. |
| attitude | The position of a spacecraft's front and tail ends relative to its direction of motion. |
| propulsion | A driving or moving force, as from an engine. |
| solar power | Power that is generated by the sun's heat energy. |
| berthing ports | Located on many space station parts, berthing ports are the places that other space station modules can connect to. |
| oceanographic | An adjective describing something that is related to the study and exploration of the oceans. |
| meteorological | An adjective describing something that is related to the weather. |
| ambient pressure | Total outside surrounding pressure. |
| atmospheric pressure | The pressure exerted by the weight of the atmosphere at sea level, 14.7 pounds per square inch (psi). Often referred to as 1 atmosphere. |
| gravity | The force of attraction between any two masses. |
| microgravity | A condition in which the weight of an object is much less than its weight on Earth. |
| vacuum | The absence of matter, including air molecules. |
| squeeze | Pressure imbalance resulting in pain or discomfort in a body air space. |
| truss | A backbon-like structure located on the outside of the station. |
| photovalic arrays | Solar panels grouped together in big sheets. |
| laboratory module | Contains equipment used for studying processes, manufacturing materials, and doing experiments. |
| node | Attaches one module to another, and provides passageways for astronauts to move from one module to another. |
| habitat module | space in which the astronauts will cook, eat, clean, sleep, bathe, exercise, and relax. |
| thermal control panels | Remove heat created by the machines and equipment of the space station. |
