If the universe is 13.8 billion years old, how can we see things 28 billion light-years from us? Doesn’t seem like there is enough time for the light to reach us.
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If you can spare 30 minutes, [this video](https://youtu.be/4iC9Qi3y9q8)explains the observable universe in a very clear way. You can skip ahead to the chapter starting at 9m if you’re short on time, but the entire video is worth a watch.
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