segunda-feira, 9 de maio de 2016

Um universo sem fim e começo



Scientists say the Universe had no beginning and no big bangUniverse Had No Beginning And No Big Bang, Scientists Say


The new model applies quantum correction terms to complement Einstein’s theory of general relativity, and accounts for dark matter and dark energy.
Phys.org reports:
The widely accepted age of the universe, as estimated by general relativity, is 13.8 billion years. In the beginning, everything in existence is thought to have occupied a single infinitely dense point, or singularity. Only after this point began to expand in a “Big Bang” did the universe officially begin.
Although the Big Bang singularity arises directly and unavoidably from the mathematics of general relativity, some scientists see it as problematic because the math can explain only what happened immediately after—not at or before—the singularity.
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