Search Results       Your search for [subject]Earth observations returned 1 record.           International study on cost-effective earth observation missions. London: Deutsches Zentrum fur Luft- und Raumfahrt e.V, 2006. Subject: Science and technology; Earth observations; Earth observations -- Cost-effective; Earth Sciences -- Remote sensing; Astronauts -- Economic aspects.          Add to Book Cart Relevance: 23.45%