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It took how many years before the universe started to cool down enough for the protons neutrons and electrons to bind together to form neutral hydrogen and helium
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What is the wavelength of the light when it was emitted from the galaxy when the universe was only about 4 billion years old
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It took how many years before the universe started to cool down enough for the protons neutrons and electrons to bind together to form neutral hydrogen and helium is your question What is the wavelength of the light when it was emitted from the galaxy when the universe was only about 4 billion years old
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