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13.8 Billion years ago, Big Bang caused the creation of the universe. According to the theory, the universe started as a very dense, very hot state and expanded rapidly and still is doing so today.
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10^-6 seconds- universe takes shape
3 seconds- formation of basic elements (hydrogen, helium. lithium) -
Birth of stars and galaxies
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5 billion years before present time
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Observed galactic redshifts in sky
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Drafts “general theory of relativity”
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Proposes an expanding model for universe
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Demonstrates the universe is expanding
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Discovered radio waves coming from Milky way
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It is built to help NASA’s project “Echo” and “Telstar”
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Theorizes that cosmic background radiation is emanating from the universe
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They hear a “hum” coming from the Holmdel antenna
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They conclude noise is coming from outside of the galaxy proving the Big Bang did occur
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Hubble telescope launched
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Big Bang confirmed
