Section headings and selected papers: Technology. Engineering technology for physics experiments in space, D B DeBra & B W Parki;son. Ultra stable clocks for use in space, E M Mattison. Clocks and spaceborne tests of relativistic gravitation, R F C Vessot. Experiments. Tests of general reliability in earth orbit using a superconductivity gravity gradiometer, H J Paik. Relativity in space astrometry projects, F Mignard & J Kovalev;ky. Investigating relativity using lunar laser ranging: geodetic precession and the Nordtvedt effect, J O Dickey et al . Gravitational Waves. Search of gravitational waves with resonant detectors, G Pizzella. Cosmic background gravitational wave radiation and prospects for its detection, A J Anderson. An antenna for laser gravitational-wave observations in space, J E Faller et al . Theory. On the black hole lens and its foci, V R Eshleman et al . Testing local Lorentz invariance using laboratory and space technology, M P Haugan & C M Will.;Quantum limitations in gravitational space experiments, V B Braginsky. Author Index.