The Solar and Heliospheric Observatory (SOHO), launched in 1995, studies the Sun's photosphere, atmosphere, and solar-wind production.

studying the sun

Over 20 space probes have studied the Sun and its effect on the space around it. Most investigate our local star while on long elliptical orbits around Earth; others work from solar orbit. Ulysses, for instance, follows a path that takes it over the Sun's poles. One craft, Genesis, brought solar-wind particles back to Earth. The probes have studied parts of the Sun, including solar flares and the corona, in a range of wavelengths.

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