Hinode's view of the sun's 'chromosphere'

The solar satellite Hinode captured this very dynamic movie of the chromosphere - a thin 'layer' of solar atmosphere 'sandwiched' between the sun's visible surface (or photosphere) and its outer atmosphere (or corona). The chromosphere is the source of ultra violet radiation. Before these images were obtained, scientists thought the chromosphere was a motionless 'layer', but Hinode showed that this description is obsolete. The observatory reveals a chromosphere that appears as constantly moving field lines like grassland with tall grass swaying under the wind.