Tag: observable
40 billion billion stellar black holes in the observable Universe!
We don’t really know how far the Universe extends in space but we know how to estimate the size of the volume of what is called the observable Universe. A…
The number of black holes in the observable Universe would be gigantic!
We don’t really know how far the Universe extends in space but we know how to estimate the size of the volume of what is called the observable Universe. A…