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Thread: A basic question about the big bang

  1. #1 A basic question about the big bang 
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    We speculate that stars are moving away. They seem to merge to a single point if we reverse their motions. My question is which of the following caused the moving away.


    1) The big bang is an explosion, such that they are moving away due to the explosion
    2) They are accelerated away due to a force, the imaginary dark energy
    3) It's due to a space expansion. That even the stars can be stationary, it gives a moving effect along with the expansion of universe. This is used to be illustrated by dots on the surface of a balloon.


    So which one or more than one of the above caused the moving away of the stars.


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    3) for starters. 2) working now. In the 1990's two groups were trying to see if the expansion was slowing down, as expected due to gravity. Instead they independently observed expansion speeding up.


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    Genius Duck Moderator Dywyddyr's Avatar
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    Several irrelevant-to-topic posts have been moved to here.
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    Forum Freshman justoldbob's Avatar
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    Quote Originally Posted by Courage View Post
    We speculate that stars are moving away. They seem to merge to a single point if we reverse their motions. My question is which of the following caused the moving away.


    1) The big bang is an explosion, such that they are moving away due to the explosion
    2) They are accelerated away due to a force, the imaginary dark energy
    3) It's due to a space expansion. That even the stars can be stationary, it gives a moving effect along with the expansion of universe. This is used to be illustrated by dots on the surface of a balloon.


    So which one or more than one of the above caused the moving away of the stars.
    All of them, yet no one can be proved as yet.
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    Genius Duck Moderator Dywyddyr's Avatar
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    Quote Originally Posted by justoldbob View Post
    All of them, yet no one can be proved as yet.
    Don't. Just... don't.
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