STS-87

The mission goals were to conduct experiments using the United States Microgravity Payload (USMP-4), conduct two EVAs, and to deploy the SPARTAN-201 experiment. This mission marked the first time an EVA was performed from Columbia. An EVA from Columbia was originally planned for STS-5 in 1982, but was cancelled due to spacesuit problems. It also marked the first EVA conducted by a Japanese astronaut, Takao Doi.