Space science
How is the age of the universe calculated?
The universe is about 13.8 billion years old, but how do we know that?
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The universe is about 13.8 billion years old, but how do we know that?
Is there something wrong with the big bang theory, or is the theory of relativity itself wrong?
The universe is thought to be about 13.7 billion years old, but a new study has shown that it may be significantly younger by several billion years.
The discovery of a massive black hole, 13.1 billion light-years away from us, is revealing to scientists many things about the early universe.