Article
Article
Solar and Heliospheric Observatory
Article By:
Lang, Kenneth R. Department of Physics and Astronomy, Tufts University, Medford, Massachusetts.
Last reviewed:January 2020
DOI:https://doi.org/10.1036/1097-8542.632800
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- Solar and Heliospheric Observatory, published 1998:Download PDF
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A spacecraft that has probed the Sun’s internal structure, its outer atmosphere, and the origin of the solar wind. The Solar and Heliospheric Observatory (SOHO), a project of international cooperation between the European Space Agency (ESA) and the National Aeronautics and Space Administration (NASA), was launched on December 2, 1995, and began full scientific operation on February 14, 1996. Although only intended as a two-year mission, the SOHO spacecraft has maintained its operational status and continues to study the Sun (Fig. 1.) See also: Solar corona; Solar radiation; Solar wind; Space probe; Sun; Star
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