NASA's Goddard Space Flight Center/Conceptual Image Lab
If the universe originated at the big bang 13 billion years ago, how can there be stars that are 30 billion light years away?
Nick Canning
Coleraine, County Londonderry, UK
Given that the universe is 13.8 billion years old, you might think the most distant observable object would be 13.8 billion light years away from us, but this isn’t the case.
The light from the most distant object we can see (given the technology we currently have) has indeed been travelling to us for 13.8 billion years, but in that time, the expansion of the universe has increased the distance…
