Solar flares are sudden releases of energy on the solar surface lasting several minutes to a few hours. They occur when magnetic fields on the sun's surface get tangled and 'reconnect,' causing nearby plasma to become superheated.
12.06.07 - Images from NASA-funded telescopes aboard a Japanese satellite have shed new light about the sun's magnetic field and the origins of solar wind, which disrupts power grids, satellites and communications on Earth.
03.21.07 - NASA released on Wednesday never-before-seen images that show the sun's magnetic field is much more turbulent and dynamic than previously known.
03.14.07 - A NASA Science Update at 1 p.m. EDT Wednesday, March 21 will be held to discuss never-before-seen observations from an international mission studying the sun.