explain big bang theory?
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As we all know big bang theory is said to be cause of why this all started and by this all I mean The Universe. If galaxies are speeding apart now, they must have been closer together in the past. So the Universe is expanding. In the 1920s, Alexander Friedmann and Georges Lemaître suggested that the Universe was once just a tiny point that swelled like a giant explosion. One critic called the idea the Big Bang, and the name stuck.
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big bang theory explain. as it is a hypothetical theory and tells about formation of planet sun etc it considered that there would be blast inside sun(as it is a big mass of fire contain helium and hydrogen gas which burn continuously ) and which broken in to fragment and formation of planet takes place.
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