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Friday, November 19, 2010

Yellow Stuff

How I love a sunny day. Unfortunately, it was overcast today!

The Sun is the star at the center of the Solar System. It has a diameter about 109 times that of Earth, and accounts for about 99.86% of the total mass of the Solar System. About three quarters of the Sun's mass consists of hydrogen, while the rest is mostly helium.

Light travels from the Sun to Earth in about 8 minutes and 19 seconds. The energy of this sunlight supports almost all life on Earth by photosynthesis, and drives Earth's climate and weather.

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