Physicists agree that an awful lot went on in the first few seconds after the Big Bang, a lot of it in incomprehensibly tiny units of time. The exact nature of that activity is far more debated, but a new model proposes not only near instantaneous black hole formation, but exotic boson and cannibal stars. The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.

Unlike the Big Bang itself, the new model does not come from nowhere. Some existing models propose that the universe’s origin story includes what has been dubbed the Early Matter-Dominated Era (EMDE). This is thought to have occurred when the originally very hot particles arising from the inflationary period of the Big Bang cooled, so that the energy they radiated no longer exceeded th

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