Is that not just a measurement of how far we can see?
IIRC, the observable universe isn't so much a measurement of how far we can actually see as it is a measurement of what we can possibly see. I think it takes into account light or signals that actually hasn't reached Earth yet, but is theoretically or presumably out there given our science. On a world in an another part of the cosmos, the observable universe may be smaller or larger than the one on Earth.Is that not just a measurement of how far we can see?
It is but I didn't want to just go "oh, very big". It's the current estimate for the observable universe...
The universe is a spheroid region 705 meters in diameter.
The universe is a spheroid region 705 meters in diameter.
you win the thread.
This neatly illustrates the size of the universe.
I always thought the universe was finite but expanding and unbounded, like the surface of a balloon that’s constantly being inflated.We don't know. We can't even see all of it, and the actual volume of space could be infinite.
I always thought the universe was finite but expanding and unbounded, like the surface of a balloon that’s constantly being inflated.We don't know. We can't even see all of it, and the actual volume of space could be infinite.
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