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Chapter 299 Star Age (2)
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Chapter 301 Star Age (4)
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... No one knows the answer, the universe is infinite, maybe it does have some kind of boundary, the universe has been around 13.7 billion years since its birth, but it is constantly expanding, and this expansion can happen at almost any rate - even exceeds the speed of light.
Over time, galaxies get farther and farther apart from each other due to the overall expansion of the universe.
The space universe is filled with hundreds of millions of galaxies, and each galaxy has hundreds of ...
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