right a short note on origin of universe
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The universe is believed to have originated about 15 billion years ago as a dense, hot globule of gas expanding rapidly outward. The first stars probably began to form out of hydrogen when the universe was about 100 million years old. ... This is how our Sun originated about 4.49 billion years ago.
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universe is a all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy. The Big Bang theory is the prevailing cosmological description of the development of the universe. ... Many of the stars in a galaxy have planets.
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