The Sun is the closest star to Earth and is the center
of our solar system. A giant, spinning ball of very hot
gas, the Sun is fueled by nuclear fusion reactions. The
light from the Sun heats our world and makes life pos-
sible. The Sun is also an active star that displays sun-
spots, solar flares, erupting prominences, and corona
mass ejections. These phenomena impact our near
Earth space environment and determine our "space
weather." Thus the sun is the soul of the entire solar
system.

Sun Fact File.	Evolution.
A Look At The Sun.	Sunspots.
Solar System.	Related Topics.

Images & Data Courtesy - NASA


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