The Big Bang Theory describes how the universe began approximately 13.8 billion years ago with a massive explosion originating from an extremely small and hot point. As the universe expanded, it cooled, which enabled tiny particles to form and combine into atoms. Over a long period, these atoms came together to create stars and galaxies, ultimately shaping the universe we observe today. Scientists have confirmed that the universe continues to expand, as evidenced by distant galaxies moving away from us and the detection of residual energy from the Big Bang.
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The Big Bang Theory explains that the universe started about 13.8 billion years ago with a huge explosion from a very tiny and hot point. As everything expanded, it cooled down, allowing tiny particles to form and stick together to make atoms. Over a long time, these atoms came together to create stars and galaxies, which grew into the universe we see today. Scientists know the universe is still expanding because we can see distant galaxies moving away from us and can detect leftover energy from the Big Bang.
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