So Hubbles law and redshift and parallax show us that the farthest stars (that we can see) are at least 13.5 billion light years away. Is it suspected that the universe is actually much older but we just cant prove it yet?
Also, is that 6.75 billion light years in any direction? Is it a radius or a diameter measurement?
Sorry to dredge this up again, not sure where else to ask.
If our galaxy takes 250 million years to make one rotation and the universe is 13.5 billion years old does that mean the Milky Way has only made 54 revolutions? Surely not.