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ZylonBane t1_jcnv4vx wrote on March 18, 2023 at 4:59 AM

Reply to comment by jthtiger in Where do photons go if they've been emitted but are destined to never be absorbed, and would these photons traveling ad infinitum define the edge of the universe (even if space itself were still larger)? by mysteryofthefieryeye

>So a photon won't redshift into nothing-ness.

It will if the rate of universal expansion is accelerating.

jthtiger t1_jcnvjfn wrote on March 18, 2023 at 5:03 AM

Hmmm. As always, physics answers brings more questions. Thanks for imparting some knowledge.