Question: Light from distant source in observable universe reaches us in 13.75 billion light years; could redshift be caused by 'tired' light and not an expanding universe? Light cannot have infinite energy so it must slow or stop?
Asked by waveicle
to Adam, Sheila on 25 Mar 2011 in Categories: Space.
Keywords: billion, distant, energy, expanding, infinite, light, observable, reaches, redshift, slow, source, stop, universe
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