| 1 | HAL/S is an aerospace-oriented computer language used in the Space Shuttle. | |
| 2 | This flight is one of the last scheduled for the space shuttle fleet. | |
| 3 | Replacement parts are coming, on board the space shuttle Discovery, set to blast off Saturday. | |
| 4 | The U.S. military' s secret space plane, a robotic demonstrator version of a next-generation space shuttle, has been spotted by astronomers. | |
| 5 | Simultaneously, a mysterious piece of debris flew high into the air near the shuttle, apparently from the flame trench. |