Observatories in Earth Orbit and Beyond: Proceedings of the 123RD Colloquium of the International Astronomical Union, Held in Greenbelt, Maryland, U.S.A., April 24–27,1990

Examining the Big Bang and Diffuse Background Radiations

The Realm of Interacting Binary Stars

Frontiers Of Space And Ground-Based Astronomy: The Astrophysics of the 21st Century

Exploring the Universe with the IUE Satellite