the sun		dark regions on the surface of the photosphere; appear dark because of their temperature
photosphere		above photosphere; it is observable for a few moments during a total solar eclipse.
chromosphere		deep in the sun's interior, sun produces energy by this process; energy is released because some matter is actually converted to energy.
corona		huge cloudily structures consisting of chromospheric gases
solar wind		radiates most of the sunlight we see
sunspots		outermost portion of solar atmosphere; visible only when the brilliant photosphere is covered.
prominences		most explosive events associated with sunspots; brief outbursts that normally last about an hour and appear as a sudden brightening of the region above a sunspot cluster.
solar flares		one of the 100 billion stars that make up the Milky Way galaxy; source of 99 percent of all energy on earth
auroras		streams of protons and electrons ejected at high speed from the solar corona
nuclear fusion		most spectacular effects of solar flares