Thanks to light, we know the history of the universe and the composition of distant celestial bodies

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The answer is light. By observing and analyzing the light transmitted from the universe, scientists can know the structure, temperature, pressure, direction and speed of movement . of bodies away from Earth billions of years. the light. Light is the source of information to reveal the history of the universe.

Edwin Hubble, a physicist, American astronomer was the first to study light from distant galaxies.

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Marvin Fry

Update 24 May 2019

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