JPRS report: Science and technology. Central Eurasia: Space

Translated articles cover the following topics: need for long-duration space missions discussed; discovery and observation of hard transient x-ray source GRS; catalog of space gamma bursts recorded with the Phebus Instrument of the Granat Observatory; observations of transient x-ray pulsar GRS 0834-43 in low state by instruments of Rentgen Observatory aboard Mir-Kvant module in November 1992; hypersonic propulsion flight test program; control of a variable-mass spacecraft in problems involving a hard encounter; dynamics of an orbital station with a long truss; background fluxes of ions as a source of upsets of electronics aboard space vehicles; Chelomey Organization's project for proton-launched 'light space plane'; aerospace studies of the earth in the Ukraine (state of the art and prospects); aerospace studies of earth in Ukraine (status and perspectives); statistical textural analysis of radar images produced by the Almaz satellite; horizontal-exchange processes in the near-surface layer of the Black Sea; analysis of the doppler radar method of measuring a field of mesoscale ocean currents from an orbital vehicle; and use of radar images taken from Almaz-1 for identifying varying-contrast geodynamic systems.