It’s hard for me to comprehend the idea that space never ends. Is there really no boundary to space? How do scientists know this?
In: Planetary Science
We don’t know for certain there is no end. All we know is as far as we can see (which is the speed of light multiplied by the time since the Big Bang), there’s always something. So even if there is something beyond our visual horizon, we simply can’t see it or know about it.
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