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Is the light from Andromeda truly blue shifted?
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[QUOTE="sol47739, post: 6870092, member: 728718"] From Quora: The light from Andromeda galaxy is actually redshifted, not blueshifted. The light from all distant galaxies appears to be redshifted, meaning that the light waves are stretched out and shifted towards the red end of the spectrum. This redshift is caused by the expansion of the universe, which causes the galaxies to move away from each other, causing the light waves to stretch out. However, it is possible for the redshift to be less than expected, which would make the light appear blueshifted in comparison to the rest of the redshifted light from other distant galaxies. This can happen if Andromeda is moving towards us faster than expected or if there are other factors causing a blueshift in the light, such as gravitational lensing. In any case, the light from Andromeda is still predominantly redshifted and not blueshifted. Isn’t this correct? [/QUOTE]
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Is the light from Andromeda truly blue shifted?
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