Scientists Find Elusive Waves in Solar Corona
2007/09/04/2318RTFA: http://nsf.gov/news/news_summ.jsp?cntn_id=109910&org=olpa&from=news

Scientists for the first time have observed elusive oscillations in the suns corona, known as Alfvén waves, that transport energy outward from the surface of the sun.
Alfvén waves are fast-moving perturbations that emanate outward from the sun along the pathways of magnetic fields, transporting electrodynamic energy. Although they had been detected beyond the sun, they had never before been viewed within the corona, the outermost layer of the suns atmosphere.
By tracking the speed and direction of the waves, researchers will be able to infer basic properties of the solar atmosphere, such as the density and direction of magnetic fields. The waves may provide answers to questions that have puzzled physicists for generations, such as why the suns corona is hundreds of times hotter than the surface.
Holy Periodic Fission, Batman!