Recent content by Juan Carlos del Rio

Translating time into space. We should just look into distant stars, galaxies, CMB, etc. I guess that in this case the light received is reddened due to the Universe expansion but could it also be any time dilation factor in this reddening? Or this is just two sides of the same coin? I mean we...

If in the early Universe the matter density was density so large causing an intense gravity field, was the time at that epoch running much more slowly compared to the actual time according to the GR? If so then, would any reference frame in the early Universe see the light apparently traveling...