To do the animation justice, here's a the link to it in 1080p resolution. (i'll also shamelessly post a link to my Patreon) https://www.patreon.com/inertialobserver …https://www.youtube.com/watch?v=8wpsZsWVvLs&feature=youtu.be …
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The Cosmic Microwave Background (CMB) from our perspective The CMB defines the size of our observable universe, stretching ~46.5 billon light years across The Milky Way is .003 times as small as the glowing blue dot at the center, which itself is ~230 million light years acrosspic.twitter.com/f6jzgtBpm5
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I forgot to multiply by 2! The observable universe is 2*46.5=93 billion light years across. Thanks to
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It’s actually the radius of our observable universe that the cmb defines as ~46bn light years. So “across the universe” is more like 90 light years.https://astronomicca.com/2018/07/11/where-is-the-edge-of-the-universe/ …
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Yes thanks I forgot to multiply by 2!
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If the universe is ~13.7 billion years, how can the observable universe be 46.5 billion light years across? Wouldn’t that mean that the matter would be traveling roughly 3.5x the speed of light? I’m probably missing something though
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The rate of inflation is not linear. The radius of the universe shot up during the first 10^-35sec and then steadily expanding at the current Hubble constant which is ~73.8 km/sec/Mpc +/-2.4 km/sec-ish.
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In one sense it’s the boundary of the observable universe, but it’s not the limit of what we are causally connected to or can in principle observe (eg primordial neutrinos and gravitational waves). Agree?
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Yes I agree
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u better credit me mf
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