The unobservable universe: what lies beyond?
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There is believed to be an unobservable universe that is beyond the limits of our current observation. This is because the speed of light is finite, and the universe has a finite age. Therefore, there is a limit to how far away we can see, and how far back in time we can observe. The observable universe is estimated to be around 93 billion light-years in diameter, which means that any object further away than that is currently beyond our ability to detect.
However, scientists believe that the universe extends far beyond what we can observe. In fact, some theories suggest that the universe may be infinite in size. These ideas are based on observations of the cosmic microwave background radiation, which suggest that the universe is both homogeneous (meaning it looks the same in all directions) and isotropic (meaning it has the same properties in all directions). If these observations are correct, it would imply that the universe is much larger than the observable universe, and that there is an unobservable universe beyond our current limits of detection.
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