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Anonymous Tue Apr 30 14:39:06 2019 No.10604817 [Reply] [Original]

how bis is the unobservable universe

inb4 there is no way to know

>>	Anonymous Tue Apr 30 14:40:06 2019 No.10604819 90bn ly diameter I'll let someone else explain why

>>	Anonymous Tue Apr 30 14:43:04 2019 No.10604826 >>10604819 no no thats observable

>>	Anonymous Tue Apr 30 14:48:44 2019 No.10604839 >>10604826 The observable universe is roughly 90bn ly diameter

>>	Anonymous Tue Apr 30 14:49:59 2019 No.10604842 >>10604839 yes I asked unobersbable

>>	Anonymous Tue Apr 30 14:50:57 2019 No.10604844 some would say it's the number of lightyears from the origin point of the big bang as the age of the universe I say it's infinite

>>	Anonymous Tue Apr 30 14:50:58 2019 No.10604845 >>10604819 >>10604839 How can we observe the universe for 90bnly, if the universe is not at least 90bn years old?

>>	Anonymous Tue Apr 30 14:52:04 2019 No.10604850 >>10604845 nothing in space can accelerate to a speed faster than light.

>>	Anonymous Tue Apr 30 14:55:25 2019 No.10604862 >>10604845 13 billion age is bullshit, you heard it here first

>>	Anonymous Tue Apr 30 14:58:44 2019 No.10604871 >>10604842 Oh sorry, I misread it

>>	Anonymous Tue Apr 30 15:02:28 2019 No.10604875 >>10604850 inflation can

>>	Anonymous Tue Apr 30 15:12:16 2019 No.10604904 >>10604875 Venezuela's inflation?

>>	Anonymous Tue Apr 30 17:53:10 2019 No.10605249 >>10604817 Current size of the universe - 90bn ly diameter sphere

>>	Anonymous Tue Apr 30 18:12:25 2019 No.10605293 >>10604850 What about space itself expanding?

>>	Anonymous Tue Apr 30 18:17:56 2019 No.10605302 >>10604817 the observable universe is pretty best in slot as far as we know

Anonymous Tue Apr 30 19:26:43 2019 No.10605453

>>10604817
In theory, the first light we see is from 13.8b years ago, the Cosmic Radiowave Background, which is not long after the Big Bang. Since then, the light emitted 13.8 billion years ago will appear much further due to inflation (Hubble's Law), working out to 46.5 billion light years in all directions.

For the unobsevable universe we don't know but we can guess based on what we see of the global spacetime curvature of the universe and cosmological constant. So far it seems the curvature is flat or very slightly positive, meaning it could be finite or infinite.

>>	Anonymous Tue Apr 30 19:29:34 2019 No.10605469 >>10605453 >meaning it could be finite or infinite. So meaning nothing right? This is literally the >whatds the xance dis haben >50 Of astronomy

>>	Anonymous Tue Apr 30 19:36:23 2019 No.10605484 >>10604817 Look around yourself About that much

>>	Anonymous Tue Apr 30 19:41:13 2019 No.10605508 >>10604817 there is no way to know its unobservable

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