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LllllllllllllllkjhgfdsasadsfghjklZXCVBNM,.QWERTYUIOP;[,MNBVCXZASDFGHJKL;POIUYTREWQ The Sun, Moon and Stars Enable Life on Earth By By Michael Kuhne, AccuWeather.com Staff Writer July 28, 2014, 4:57:13 AM EDT Share this article:         The sun, moon and vast array of stars littering the night sky were all  essential in generating life on Earth. “Earth really is a perfect planet for life, but also complex life,”  Pennsylvania State University  Astronomy Researcher Paul  Robertson  said. No other known planet is quite like Earth. It is covered in liquid water,  sits within a habitable proximity to the warm glow of a sun and still  retains an atmosphere capable of sustaining life. However, it could have turned out much differently, leaving the planet to float aimlessly,  desolate and lifeless, across the cold expanse of space for all time. The Birth of the Universe, Stars and Elements The stars of the night sky have astonished humanity dating back to the  earliest civilizations, even dictating religious beliefs, societal norms and  architecture. These heavenly bodies have also inspired philosophers,  provided direction to weary travelers navigating long journeys and  deposited the very fabric of our existence.
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Nearly 14 billion years ago, all matter, energy, space and time were  unified as one, exploding outward in a violent, chaotic expansion at  rate  that challenges comprehension. In its infancy, the cooling expansion of the hot, dense universe would  allow for the formation of atomic nuclei to create molecules of hydrogen  and helium, eventually giving rise to nebulae of gas that spawned stars,  incandescent orbs of superheated gas. All of the heavier elements found on Earth, including those that  compose the human body, were created in the cores of these brilliant,  glowing stars. Without stars, the ingredients for planets and life would  have never formed.
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