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How Large is the Universe now - Red Shift

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How much larger is the Universe now than it was when a galaxy at redshift z=5 estimated the light that we see now?

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A detailed solution with a thorough explanation. The expert determines how much larger is the Universe now than it was when a galaxy at redshifts.

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As the universe expands, the light emitted by a distant galaxy and reaching an observer increases in wavelength as it traverses through the expanding universe. Thus, its spectrum shifts towards the red end and is called the ...

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