Evidence in the form of __________ allows us to know the age of the universe and distant galaxies.

Name: Evidence in the form of __________ allows us to know the age of the universe and distant galaxies.
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Question

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The increase in the wavelength of distant starlight, known as redshift, is evidence that allows us to determine the age of the universe and distant galaxies. This phenomenon is a key aspect of the Doppler effect and supports the Big Bang theory by indicating the universe is expanding.

Evidence in the Form of __________ Allows Us to Know