We have sent several solar missions into space to study the Sun and its characteristics. The first detailed observations were made by NASA’s Pioneer missions that were launched between 1959 and 1968. The Solar Maximum mission of 1980 made a detailed study of solar flares. The Solar and Heliospheric Observatory (SOHO) launched in 1995, has been continuously collecting data regarding the Sun for the last ten years.
The Sun takes about 26 days on average to rotate on its axis. Since it is made up of gas, different parts of the Sun rotateat different speeds. The surface closest to the equator rotates faster than that closest to the polar regions. The Sun’ssurface near the poles takes almost 36 days to complete one rotation.
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