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Nothing Before The Bing Bang
The big bang was the start of everything , so we have been told
Except for dark matter
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Except for dark matter
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Answers
It shows it depends on what you call the "Big Bang". "Tenkanen suggests dark matter was first produced during an era known as the cosmic inflation - when space was expanding very rapidly." I always thought that the "Big Bang"was defined at the start, regardless, and only in the last few years understood some consider it an event part way in.
Then there's the problem with looking at things at the leading edge of our knowledge. One can choose to favour whichever conjecture appeals to you until the evidence comes in and whittles the possibilities down.
Then there's the problem with looking at things at the leading edge of our knowledge. One can choose to favour whichever conjecture appeals to you until the evidence comes in and whittles the possibilities down.
"Dark matter is known to play a crucial role in the formation of galaxies and galaxy clusters, and scientists know it exists because of its gravitational effects on the movement and distribution of visible matter in space."
Bah ! "Know" indeed. Could be something else no one has even thought of yet causing the effects. Dark matter will be the most obvious simplest explanation we have at present.
Bah ! "Know" indeed. Could be something else no one has even thought of yet causing the effects. Dark matter will be the most obvious simplest explanation we have at present.
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