https://en.wikipedia.org/wiki/Wilkinson_Microwave_Anisotropy_Probe https://en.wikipedia.org/wiki/Wilkinson_Microwave_Anisotropy... > We now know (as of 2013) t

https://en.wikipedia.org/wiki/Wilkinson_Microwave_Anisotropy_Probe https://en.wikipedia.org/wiki/Wilkinson_Microwave_Anisotropy... > We now know (as of 2013) that the universe is flat with only a 0.4% margin of error. This suggests that the Universe is infinite in extent; however, since the Universe has a finite age, we can only observe a finite volume of the Universe. All we can truly conclude is that the Universe is much larger than the volume we can directly observe. https://wmap.gsfc.nasa.gov/universe/uni_shape.html https://wmap.gsfc.nasa.gov/universe/uni_shape.html