This year marks 30 years of SOHO observing our sun, an extraordinary milestone for a mission originally expected to last only about three years. When you purchase through links on our site, we may ...

The ESA/NASA Solar and Heliospheric Observatory (SOHO) has been observing the Sun for 30 years. In that time, SOHO has observed nearly three of the Sun’s 11-year solar cycles, throughout which solar ...