#space #science #theuniverse #howtheuniverseworks #htuw
Today the universe has expanded into an age and size that is physically only in parts observable as the observable universe, which is approximately 93 billion light-years in diameter at the present day, while the spatial size, if any, of the entire universe is unknown.
![](https://i.ytimg.com/vi/bdw5shXm8iE/maxresdefault.jpg)