✔ 最佳答案
I understand your question and it is still hard for me to wrap my head around it. Here is a couple entries I found:
"The object you mention was only 4 billion (not 13 billion) light years from us when it emitted the light we see 13 billion years later. We and the object are separating from each other (not flying together) at about 1.8 times the speed of light. Although this appears to break the speed-limit law, it doesn't. "
So this is how we can see an object that is only 1 billion years old, 13 billion years later.
"This is the problem of defining a distance in an expanding universe: Two galaxies are near to each other when the universe is only 1 billion years old. The first galaxy emits a pulse of light. The second galaxy does not receive the pulse until the universe is 14 billion years old. By this time, the galaxies are separated by about 26 billion light years; the pulse of light has been traveling for 13 billion years; and the view the people receive in the second galaxy is an image of the first galaxy when it was only 1 billion years old and when it was only about 2 billion light years away. "
check the source links below, there are some good pictures that may help.