The Size Of Our World or How Insignificant the Earth Really Is in the Universe
source: http://www.makeahistory.com/index.php/submit-an-article/337-the-size-of-our-world-or-how-ins...
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The fact that the Earth and other matter, including other planets, asteroids, meteoroids, comets and dust, make up for 0.2 percent of the mass of the entire system: the diameter of the Sun is 109 times larger than Earth's, making us look like a spot on its surface. Titanic of all stars, a class M supergiant star. 10,000 times more luminous than our Sun, it is also almost 18 times its mass. http://www.makeahistory.com/index.php/submit-an-article/337-the-size-of-our-worl...
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