| 100% | CHALLENGER | 10 | NASA's second Space Shuttle orbiter constructed by Rockwell International |
| 87% | ENTERPRISE | 10 | NASA's first Space Shuttle orbiter constructed by Rockwell International |
| 87% | ATLANTIS | 8 | NASA's fourth Space Shuttle orbiter constructed by Rockwell International |
| 76% | COLUMBIA | 8 | NASA's first space-rated Space Shuttle orbiter constructed by Rockwell International |
| 36% | CHALLENGER | 10 | NASA's space shuttle that broke apart 73 seconds after take off in 1986 |
| 35% | CHALLENGER | 10 | Space Shuttle —, orbiter that exploded 73 seconds after lift-off in January, 1986 |
| 35% | CHALLENGER | 10 | Space Shuttle —, orbiter that exploded 73 seconds after lift-off in January 1986 |
| 25% | DISCOVERY | 9 | NASA space shuttle in service from 1984-2011 |
| 25% | ENDEAVOUR | 9 | Final operational shuttle built by NASA |
| 25% | SHUTTLE | 7 | Space __; spacecraft system operated by NASA |
| 25% | ORBIT | 5 | Space shuttle's path |
| 25% | REENTRY | 7 | Space shuttle's return |
| 25% | DISCOVERY | 9 | First shuttle to be retired by NASA |
| 24% | GEMINI | 6 | NASA's second human spaceflight program |
| 24% | DUCT | 4 | ___ tape was invited by NASA for use in space |
| 24% | ORBIT | 5 | Space shuttle's path around the Earth |
| 24% | SPAR | 4 | Space Shuttle's original Canadarm maker: ___ Aerospace |
| 24% | ISS | 3 | NASA's six-person orbiter |
| 24% | GODDARD | 7 | NASA's __ Space Flight Center |
| 23% | MISSION | 7 | NASA's is space exploration |
| 23% | ENDEAVOUR | 9 | NASA Space Shuttle aka OV-105 whose first mission was in May, 1992 |
| 23% | ENDEAVOUR | 9 | NASA Space Shuttle aka OV-105 whose first mission was in May 1992 |
| 23% | MOONRAKER | 9 | Space shuttle used in James Bond's 1979 movie |
| 23% | REENTRY | 7 | Point in a space shuttle's trip |
| 23% | TILE | 4 | Part of a space shuttle's exterior |
| 23% | DELTAWING | 9 | One of a space shuttle's pair |
| 23% | ORBIT | 5 | International Space Station's path |
| 22% | OUTER | 5 | __ space; NASA's milieu |
| 22% | EARTHREENTRY | 12 | Critical stage in a space shuttle's flight |
| 21% | ORING | 5 | Space shuttle part |