ACTA ASTRONAUTICA Journal of the International Academy of Astronautics Chairman: L G NAPOLITANO, Institute of Aerodynamics, University of Naples, P. Le Tecchio, 80-80125 Naples, Italy Editor: J-P MAREC, 3-5 rue Mario-Nikis, 75015 Paris, France A selection of papers The European Space Agency's Earth observation satellite programmes, G DIETERLE. The market of remote sensing data: a developing business, M TRAIZET. The metric camera experiment on the first Spacelab flight, M SCHROEDER. On flows with vibrational relaxation behind an attached shock wave, V D SHARMA & R SHYAM. Stability of large flexible damped spacecraft modeled as elastic continua, P K MAHARANA & S K SHRIVASTAVA. A socio-economic evaluation of the lunar environment and resources — III. Selenospheric economics and cislunar terrestrial market analysis, K A EHRICKE. Advanced thermal control for French- German direct broadcasting satellites TDF1/TVSAT, F GIOVAGNOLI. Theoretical study about the Marangoni convection in a liquid column in zerogravity, H F BAUER. Fluid transport in capillary systems under microgravity, P J SELL & E MAISCH. Formation of rings in the equatorial plane of gaseous stars, Y AIHARA. Effects of moisture and thermal ageing on structural stability of sandwich panels, F MORGANTI etal. Acta Astronautica publishes original contributions in all fields of basic, engineering, life and social space sciences and of space technology related to: (1) the peaceful scientific exploration of space; (2) its exploitation for human welfare and progress; (3) the conception, design, development and operation of the systems, space- borne and earth-based, needed to accomplish the foregoing two tasks. The journal will publish: (a) normal issues containing contributed papers; (b) issues dedicated to IAF congresses, IAA symposia or to any other topic of scientific international relevance; (c) transactions of the academy.
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