I love astronomy stuff, not an expert at all, but have always been so fascinated by it. I am totally baffled by how we seem to claim that we can approximate how long the sun has been around. Like the margin of error for a number like that is crazy…. totally incomprehensible to me. Say that we are 25% off, that means we are over 1 billion years off. So, how do people confidently claim that the sun is 4.6 billion years, rather than 3 billion or 10 billion?
In: 1140
We don’t even know when (or how) the pyramids were built, which was likely only a few thousand years ago. So to answer your question, educated guesses by scientists (but they could be very wrong and truly do not know for sure).
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