How can we talk about a visible universe 15 billion light-years in radius?

His body began to turn into different parts of the visible universe.

Plasmas make up more than 99% of the visible universe.

Not just the visible universe in front, but from behind them as well.

Also see misconceptions about the size of the visible universe.

And our galaxy is just one of roughly 100 billion in the visible universe.

And, for all he knew, likewise every body in the visible universe.

The resources of the visible universe make even our galaxy seem insignificant by comparison.

Most of these bursts come from the edge of the visible universe.

Not a star or other light in the entire visible universe.