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The esteemed Crank o' the Day for 2025 Dec 21:
Halton Arp's discoveries about redshift
2003 Oct 30
... astronomy
. cosmology
...
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"If the lines in the spectrum of the light from a star or galaxy appear at a lower frequency (shifted toward the red) than where they are observed in the spectrum of the Sun, we say this object has 'positive redshift'. The accepted explanation for this effect is that the object must be moving away from us. This interpretation is drawn by analogy with the downward shift in the pitch of a train whistle as it passes through a railroad crossing and then speeds away from us. The question is: 'Is recessional velocity the only thing that can produce a redshift, as modern astrophysicists presume?' It has become clear that the answer to that question is an emphatic 'NO!'"
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