Video: Carl Sagan on alien civilisations
Patrick Moore discusses the search for life with the famous US astronomer Dr Carl Sagan…
My brain hurts at the best of times when I think about the universe and the expanse of space out there. The idea that it has starting point is not easy to comprehend, if it did indeed start with a big bang, then what was there before the bag? Nothing? Then where did the stuff that caused teh bang come from? See, your brain starts to hurt!
Now a new Quantum equation suggest the universe has always existed and will continue for ever!
A new quantum equation suggests that the Universe has no beginning or end, and it could also account for dark matter and dark energy.
Researchers have created a new model that applies our latest understanding of quantum mechanics to Einstein’s theory of general relativity – and according to their calculations, the Universe may have been going forever.
Link:- Science Alert
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.