When we look at the past viewing, the universe, even at 12 billion years. the galaxies look fully form. why?

The first galaxies were fully formed about 200-million years after the Big Bang. Light from those galaxies has taken 13.7-billion years to reach us.

Because those galaxies were fully formed 12 billion years ago. Not all galaxies are the same age.

Be careful who you listen to around here. There is no real-world evidence that the universe is only 6000 years old; that is a religious belief that is not true in the real world. All the real evidence is consistent with a figure of about 13.7 billion years.

Good question....

That's one of the reasons why some scientists don't think the universe as we know it is 12 or 18 billion years old, even when they accept the Big Bang theory of the universe's beginning.

Read a book not so long ago by an astrophysicist who suggested that time is not as uniform as many other scientists assume. His mathematics fit with conventional mathematics, except that his approach made a 6000 YEAR universe look feasible, without major contradictions of what we observe today in current physics theories.

Not saying he is right, but his maths was as solid as any I've ever seen, and nothing in current astronomy or astrophysics actually contradicts his calculations and conclusions. It's one of those things where we need to wait until we get better observations and measurements that will either prove what he says or the opposite (or something inbetween).

Take time out of the factor. The universe went from a tiny dot, to everything around us; in a matter of seconds. If you want to include time, it is like time sped-up amazingly quick. Now time is slower, of which we can understand. I read that earth time, 24 hour days, does not include how fast earth is moving through space; something like thousands of miles a second. Good thing that there is no wind in space; we would all be blown off earth!

Holy cow! That's a good question!

It's probably because those galaxies formed

in the couple billion years prior to that.

Obviously, we can't see galaxies that hadn't formed yet.

Someone else may have a better explanation but it is

an interesting question.