Ask Ethan: Is the Universe the same age everywhere?
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From our perspective in the cosmos, we can look in any direction we like, as far as our instruments can see, and see objects not as they are today, but as they were long ago. All of the light that we collect, from anywhere in the entire Universe, only arrives at our eyes and in our instruments after journeying across the vast expanse of space that separates us, the observer, from the emitting source. For stars within our own galaxy, those distances are measured in light-years, up to tens-of-thou
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