Joe MurchisonPlacerville, California Astronomers widely accept that the universe formed in theContinue reading "How can the visible universe be 46 billion light-years in radius when the universe ...
that the edge of the observable universe is billions of light years away and that our universe is not a photograph, but rather a movie playing out over time. But perhaps most importantly ...
There will be light, feebly, at the end. In all its forms—visible and invisible—it saturates the universe. Light is more than a little bit inscrutable. Modern physics has sliced the stuff of ...
In special relativity, the speed of light is the ultimate speed limit to the universe. Every single moving object in the universe is constrained by that fundamental limit. This isn’t something like ...