The star of our solar system is a hug ball of hot, glowing gases. At about 333,000 times the mass of earth, the sun contains 99.8 percent of all mass in the solar system. Heat and light from this average-size star travel a mean distance of 92.96 million miles (149.6 million kilometers) to reach Earth and support all life on our planet.
Saturday, August 22, 2009
Sun - The Center of It All
Post By Az pada 9:23 PM
from: National Geographic
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