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Astronomy and Cosmology
Cosmology
Size of Universe: Exploring 13.7bn Years of Space
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[QUOTE="Pete72, post: 5469129, member: 593526"] Thanks Chalnoth, that's really helpful. A bit of a follow up though. If I had a (really long) ruler I could measure the observable universe as being 46 bn light years wide. As I understand it, and also from your response, we are measuring matter from the CMB here. I could understand if the observable universe were 13.7 bn light years wide. I could also understand if it were a "bit" more due to expansion in the early moments after the Big Bang but the differential between 46 bn ly and 13 bn ly is quite extreme. Is that all down to early expansion? Cheers, Pete. [/QUOTE]
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Forums
Astronomy and Cosmology
Cosmology
Size of Universe: Exploring 13.7bn Years of Space
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