Young, John2018-10-022018-10-021979-11-21https://hdl.handle.net/2152.3/10265The subject of this United States Government Memorandum is the ADDition of Space Motion Sickness Testing on STS-1, and includes an additional document titled Validation of Predictive Tests and Countermeasures for Space Motion Sickness.Dr. William ThorntonUnited States Government MemorandumSTSspace motion sicknessSpace ShuttleMissionsSpace Medicine