Where did the Grand Canyon sand come from?
creation.com
As for your other problems, quid pro quo. Answer this problem with light from distant objects...
"In the big-bang model, there is the “Horizon Problem,” a variant of the light-travel-time problem which you mentioned
. This is based on the exchange of starlight/electromagnetic radiation to make the universe a constant temperature.
In the supposed
big bang, the light could not have been exchanged and the universe was expected to have many variations of temperature, but this was not the case when measured. Such problems cause many to struggle with the bigbang model, and rightly so.
- Early in the alleged big bang, points A and B start out with different temperatures.
- Today, points A and B have the same temperature, yet there has not been enough time for them to exchange light."
Once you figure out your atheist science's problem, then it can be applied to the light from distant objects. Hurry. Hurry. Step right up. Get your hypotheses here!