Solar and Heliospheric Observatory (SOHO) is a spacecraft laboratory project of ESA and NASA, heading its instruments to the Sun, while orbiting the Sun-Earth Lagrange L1 point. Its mission is to study the Sun from its deep core to the outer corona and the solar wind.
Latest L1 point data plots from SOHO CELIAS instruments:
(External links to plots and descriptions open in a new browser window.)
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