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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Replying to @InertialObservr
This may be a dumb question but how do we know that we aren’t just measuring floating point error in the simulator?
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