European Space Agency (ESA) / National Aeronautics and Space Administration (NASA) craft studying sun, surpasses another full year of operations in space today, launched 1995; discovered more than 3,000 comets.
32 Years in Space: Solar and Heliospheric Observatory (SOHO)
European Space Agency (ESA) / National Aeronautics and Space Administration (NASA) craft studying sun, surpasses another full year of operations in space today, launched 1995; discovered more than 3,000 comets.