Designed for classroom use, this publication provides an overview of the first Space Shuttle/Spacelab mission, a cooperative venture between the European Space Agency (ESA) and the National Aeronautics and Space Administration (NASA). The main purpose of ESA's Spacelab, which will be carried aboard NASA's Space Shuttle (technically called the Space Transportation System or STS), is described as enabling scientists to go into space to conduct experiments which are not possible in Earth's atmosphere and gravity. Topics covered include: (1) the goals of the mission; (2) the types of experiments and investigations which will be performed; (3) the crew; (4) the physical design of the craft; (5) human and data communications between the Johnson Space Center and the Spacelab; and (6) the ability of the Spacelab to be used again. Six questions and activities for classroom instruction are provided. (DC)