Radar vision maps Napa Valley earthquake

Title ESRO-4 readied for solar simulation testing Released 18/09/2014 9:48 am Copyright ESA Description - The ESRO-4 satellite being prepared for solar simulation testing in Building 24 of the ESTEC technical centre in early 1972. Launched that same year on 22 November, this 90-cm high, 76-cm wide satellite significantly advanced scientific understanding of Earth's atmosphere, ionosphere and radiation belts, despite being injected into an incorrect orbit. ESRO-4 was based on the proven ESRO-2B design, which in 9 May 1971 became the very first mission into orbit of the European Space Research Organisation, ESA's predecessor. Original engineering models of a number of pioneering European space missions - functional replicas of the final satellites, constructed expressly for testing - will go on show at the ESTEC Open Day on 5 October , as part of an exhibition marking 50 years of European cooperation in space. For more information on Europe's first half-century in space, visit the ESA History site. Thank you for rating! You have already rated this page, you can only rate it once! Your rating has been changed, thanks for rating!