If twelve solar masses will produce a black hole, how come the big bang could result in an expanding universe? I.e. if all the mass of the universe come into existence at one place at the same time, how come no super massive black hole? Answer me that if you can.
Denis M Pointer from Warwickshire (Aged 55+)
Filed under: age 55+, Big Bang Big Questions, Black Holes Big Questions, Physics Big Questions, Unanswered Big Questions
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I am not an expert on this and have had the same question as yours. From what I have read, I have concluded that the Big Bang must have been a huge explosion of pure energy (radiation), hence no mass.
Over time, energy converted (E=mc^2) into elementary particles, then protons, electrons and eventually hydrogen and helium.
All other elements were created by stars later (this has been proven by physicists).
According to Inflation Theory, the universe expanded enormously during the first instants after the Big Bang
(space expanded faster than light speed). This expansion could have prevented the new particles of mass from becoming dense enough to create black holes during the first few seconds (and minutes?) of the universe. After this, any black holes would be sufficiently localized so as not to entrap the new universe.
This is just my own theory. Comments welcome.