| A | B |
|---|
| STS | Space Transportation System |
| OV | Orbital Vehicle |
| January 28, 1986 | launch date for Challenger STS-51 |
| April 12-14, 1981 | Dates of First Space Shuttle trip:STS-1 OV-102 |
| NASA | National Aeronautics and Space Administration |
| February 1, 2003 | Columbia STS-107 tragedy date |
| Christa McAuliffe | Teacher/Astronaut aboard Challenger STS-51 |
| Sally Ride | First US women Astronaut |
| Young and Crippen | Astronauts aboard STS-1 |
| O-ring failure | Cause of Challenger explosion |
| During launch Foam breaks off striking L-wing | Eventual Cause of Columbia tragedy |
| Space Shuttle's all named after | Sailing vessels |
| RPM | Rendezvous/Rotational Pitch Maneuver |
| SRB | Solid Rocket Booster |
| Rick Husband | Commander of STS-107 Columbia |
| 122 ft. | length of Space Shuttles |
| ET | External Fuel Tank |
| ISS | International Space Station |
| Dick Scobee | Cmdr. STS-51 Challenger |
| Poor Judgement/Human error | Factor which contributed to both shuttle disasters |
