Acho mesmo que toda a gente devia ler este texto
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We live on Earth. Earth is a clump of iron and magnesium and nickel, smeared with a thin layer of organic matter, and sleeved in vapor. It whirls along in a nearly circular orbit around a minor star we call the sun.
I know, the sun doesn’t seem minor. The sun puts the energy in our salads, milkshakes, hamburgers, gas tanks, and oceans. It literally makes the world go round. And it’s huge: The Earth is a chickpea and the sun is a beach ball. The sun comprises 99.9 percent of all the mass in the solar system. Which means Earth, Mars, Jupiter, Saturn, etc., all fit into that little 0.1 percent.
But, truly, our sun is exceedingly minor. Almost incomprehensibly minor.
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I know, the sun doesn’t seem minor. The sun puts the energy in our salads, milkshakes, hamburgers, gas tanks, and oceans. It literally makes the world go round. And it’s huge: The Earth is a chickpea and the sun is a beach ball. The sun comprises 99.9 percent of all the mass in the solar system. Which means Earth, Mars, Jupiter, Saturn, etc., all fit into that little 0.1 percent.
But, truly, our sun is exceedingly minor. Almost incomprehensibly minor.
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O resto está aqui. Via 3quarksdaily.
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