๐ฅAnswer:- It's possible that before the Big Bang, the universe was an infinite stretch of an ultrahot, dense material, persisting in a steady state until, for some reason, the Big Bang occured. This extra-dense universe may have been governed by quantum mechanics, the physics of the extremely small scale๐ฅ
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โจA massive black hole is traveling through space at 3 million miles-per-secondโจ
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โจSun spots have a very strong magnet field, which prevents the convection of energy, and thus accounts for their lower temperaturesโจ
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๐ฒ Quiz '16 Question about Astronomy'
๐ 16 questions ยท โฑ 1 min
๐ 16 questions ยท โฑ 1 min