Active, orbiting the Sun. Dates per ESA; missions shift.
💡 Explain Like I'm 10
What is it? A Sun-observing spacecraft with ten instruments.
Why does it matter? To understand how the Sun creates and controls the A steady stream of charged particles flowing out from the Sun in every direction. Glossary and how that affects our planet.
Solar Orbiter, an international mission between ESA and NASA, launched in February 2020. It has taken the closest-ever images of the Sun and the first close-up images of the Sun's polar regions, coming within 42 million km of the Sun, and links the solar wind to where it comes from on the Sun's surface.