2 days ago · Solar Pick SOHO's 30th Birthday (December 02, 2025) We are celebrating 30 years since the launch of SOHO. Happy Birthday! more »

2 days ago · NOTICE: SDO/HMI Continuum and SDO/HMI Magnetogram image outage due to a cooling water line burst in the Joint Science Operations Center (JSOC) at Stanford University on 2024-11-26. …

Jan 8, 2026 · SOHO, the Solar & Heliospheric Observatory, is a project of international collaboration between ESA and NASA to study the Sun from its deep core to the outer corona and the solar wind.

Jan 9, 2026 · Above the surface is a region of hot plasma called the corona. The corona is about 2 million K (3.6 million degrees F), much hotter than the visible surface, and it is even hotter in a flare. …

The SOHO summary data is a collection of daily solar data obtained by different SOHO instruments. For non-solar physicists, to learn some of the theory behind Solar observations, please visit our How do …

4 days ago · An interactive multimedia exploration of the Sun through the eyes of SOHO. The CD covers topics ranging from the history of solar exploration to new scientific results and the Sun's influence on …

4 days ago · Windows to the Universe: Space Weather Today Human Impacts of Solar Storms and Space Weather IPS Real-Time Space Weather Status SOHO Halo Alert Reports Solar Terrestrial …

Jan 8, 2026 · Explore captivating images of the Sun and heliosphere captured by the Solar and Heliospheric Observatory (SOHO).

6 days ago · These data products are also available for download from the SOHO Archive. CELIAS Proton Monitor 30sec data [TXT, 256M] CELIAS Proton Monitor 5min data [TXT, 35M] CELIAS …

What is SOHO and how can society benefit from its science? SOHO stands for Solar and Heliospheric Observatory and is a satellite that studies the Sun 24 hours a day, 365 days a year without …