Sunday, 21 June 2009

Summer Solstice

24 hours of daylight and a night filled with magic. I so love this time of year! =)

Some sun facts:
# The sun is our closest star, at about 93 million miles away from the earth. The next closest star, Alpha Centauri, is more than 250,000 times farther away from us than is the sun.
# The sun is a medium-sized star, measuring about 865,000 miles in diameter; it's about 109 times larger than the earth.
# The sun's energy comes from its highly compressed core, where hydrogen nuclei collide at incredibly high speeds, fusing to form helium nuclei and generating temperatures of 40 million degrees F. This process generates the sun's energy, which gradually works its way to the surface and is radiated off.
# The earth receives only about two billionths of the sun's total energy output, yet that tiny fraction is enough to sustain life.
# Of the sun's energy that reaches the earth without being bounced off by clouds or deflected by other particles in the atmosphere, most is spent evaporating moisture into clouds, and much of the remainder is converted into carbon-based life by plants through photosynthesis.
# The sun is about 5 billion years old, and should continue burning for another 5 billion years.


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