I. Current Missions.- The Hubble Space Telescope.- Early Results from the Cosmic Background Explorer (COBE).- The Status of the DIRBE Instrument on the COBE.- The Automatic Spacecraft Granat.- The Hipparcos Mission: Will It Be a Scientific Success?.- The International Ultraviolet Explorer (IUE).- X-Ray Astronomy Satellite Ginga.- Extreme and Far Ultraviolet Astronomy from Voyagers 1 and 2.- II. Future Missions.- Röntgen Satellite.- The Gamma-Ray Observatory.- The Advanced X-Ray Astrophysics Facility.- The Astro-D Mission.- The X-Ray Timing Explorer.- The Joint European Telescope for X-Ray Astronomy (JET-X).- SODART Telescope on Spectrum-Röntgen-Gamma and Its Instrumentation.- ESA's X-Ray Astronomy Mission, XMM.- The SAX Mission for X-Ray Astronomy.- The Extreme Ultraviolet Explorer Mission.- Lyman the Far Ultraviolet Spectroscopic Explorer.- Far and Extreme Ultraviolet Astronomy with Orfeus.- The Spectrum - UV Project.- The Space Infrared Telescope Facility (SIRTF).- The Infrared Space Observatory.- IRTS: Infrared Telescope in Space.- FIRST - Far Infrared and Submillimetre Space Telescope.- A Submillimeter Mission for the 1990s: SMMM.- The Submillimeter Wave Astronomy Satellite.- International VLBI Satellite (IVS).- VSOP, A Space VLBI Programme.- VLBI with TDRSS.- SOHO - An Observatory to Study the Solar Interior and the Solar Atmosphere.- An Overview of the Orbiting Solar Laboratory.- The Planetenteleskop Mission.- The Astrometric Imaging Telescope: Near-Term Discovery and Study of Other Planetary Systems.- Ultraviolet Polarimetry.- The Hopkins Ultraviolet Telescope.- The Ultraviolet Imaging Telescope for Astro 1.- The Broad Band X-Ray Telescope (BBXRT) on Astro-1.- Future Solar System Missions.- The Ulysses Mission in the High Latitude Heliosphere.- Science Operations for Future Space Astrophysics Missions.- III. Launch Vehicles.- United States Launch Vehicle Systems.- ESA's Space Transportation Programme.- Launch Vehicles of ISAS.- U.S.S.R. LAUNCH SYSTEMS 343.- Launch Vehicles of the Future: Earth to Near-Earth Space.- Future Deep Space Propulsion Systems.- IV. Relative Merits of Various Observatories.- Lunar-Based Astronomy.- Relative Merits of Low-Earth, Eccentric, Geosynchronous, and Interplanetary Orbits and Sites in Space.- Humanity or Robotics in Space?.- Astrophysics from the Moon.- Use of Libration-Point Orbits for Space Observatories.- Major Observatories Versus Economy-Class Observatories in Space.- V. Long Term Future Issues.- Does Theory Advance with Technology?.- Occultation Astronomy.- Comments.- The Astrophysics of the Future.- Evolution of the Unsolved Problems.- Contributed Papers.- SIXA: The Solid State Spectrometer Array Onboard Spectrum-X-Gamma.- The X-Ray Large Array.- The Stellar X-Ray Polarimeter for the Spectrum-X-Gamma Mission.- The All-Sky Extragalactic X-Ray Foreground.- A Low Energy Gas Scintillation Proportional Counter for the SAX-X-Ray Astronomy Satellite.- The EXOSAT Results Database.- An X-Ray All Sky Monitor for a Japanese Experimental Module on the Space Station.- The Astro Mission.- The UV Imager for the Israeli Scientific Satellite.- ORFEUS-SPAS: The Berkeley EUV Spectrometer.- An Observatory for Mapping the Far UV Diffuse Galactic Emission Line Background.- Project of a Three Reflection Telescope for Wide Field Ultraviolet Observations.- Santa Maria: An Orbiting Multispectral Observatory.- Cryogenic Testing of Optics for ISOCAM.- EDISON: A Second Generation Infrared Space Observatory.- Merits of Space VLBI Missions for Geodynamics.- Low Frequency Radio Astronomy from Earth Orbit.- High-Resolution Imaging Spectroscopy at TeraHertz Frequencies.- Science Observations with the IUE Using the One Gyro Mode.- New Methods of Determining Spacecraft Attitude.- Knowledge Based Automated Scheduling and Planning Tools for IUE.- Earth Observation System Plans of India.- The Stability of the Planetary Triangular Lagrange Points.- Cosmic Rays and the Dynamic Balance in the Large Magellanic Cloud.- Li

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