Solar wind evolution imaged for the first time
Artist's conceptual drawing of the two spacecraft in orbit around the sun (nasa.gov)

The solar wind nearest the sun is structured in distinct rays, much like a child's simple drawing of the sun. However, as it approaches Earth, the solar wind becomes gusty and turbulent. Now, scientists using NASA's Solar Terrestrial Relations Observatory (STEREO) say they have imaged the boundary between the sun's corona and the solar wind where…