太空实验室是指重复使用的航天实验室，设置在航天飞机内部。太空实验室从1983年开始设置于航天飞机内部，1998年4月最后一次升空 ，总共发射22次。

Spacelab was a reusable laboratory used on certain spaceflights flown by the Space Shuttle. The laboratory comprised multiple components, including a pressurized module, an unpressurized carrier and other related hardware housed in the Shuttle's cargo bay. The components were arranged in various configurations to meet the needs of each spaceflight.