STS-40, the eleventh launch of Space Shuttle Columbia, was a nine-day mission in June 1991. It carried the Spacelab module for Spacelab Life Sciences 1 (SLS-1), the fifth Spacelab mission and the first dedicated solely to biology. STS-40 was the first spaceflight that included three women crew members.
Key Facts
| Subject | STS-40 |
| Category | 1991 American crewed spaceflight |
| Reading time | 1 min · Intermediate |
| Key date | 1991 |
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