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Emuna from Dark Energy - A Ma Gadlu Project

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it has to do with the expansion of the universe and it's easy to explain using a baseball now if I toss this ball up in the air we all know what will happen as it rises it slows down because of gravity now astronomers knew that the universe was expanding and they assume that the expansion would slow down because of the gravitational pull of stars and galaxies just as the ball slows down because of the gravitational pull of the earth but when they actually did the measurements they found something astonishing something that rocked the foundations of physics they found that the expansion is not slowing down it's speeding up it's as if I took this basically and when I throw it instead of slowing down as it rushes away it speeds up now if you saw a ball do that you'd assume there's some invisible four sets counteracting gravity pushing on the ball forcing it to speed away ever more quickly astronomers came to the same conclusion about the universe that some kind of energy in space must be pushing all the galaxies apart causing the expansion to speed up because we don't see this energy the astronomers called it dark energy it's among the most important experimental discoveries ever in the history of science it took most of us completely by surprise and so we're still trying to come to grips with that discovering that dark energy is pushing every galaxies in our universe away from every other at an accelerating rate was shocking enough but even more surprising was the strength of that dark energy for over a decade scientists have been unable to explain why such a peculiar amount of it exists in empty space now the idea that space contains any energy at all sounds strange but our theory of small things like molecules and atoms the theory called quantum mechanics tells us that there's a lot of activity in the microscopic realm activity that can contribute an energy to space and according to the map the amount of energy generated by that microscopic activity is enormous and the problem is when astronomers measure the amount of energy that's actually out there the amount of energy required to force the galaxies apart at the accelerating rate that's observed they get a number like this a decimal point followed by a hundred and twenty two zeros and then a one an incredibly tiny amount very close to zero and nothing at all like what the theory predicted in fact it's trillions and trillions and trillions and trillions of times smaller colossal mismatch we have tried everything to explain why the dark energy is as small as it is we've tried everything and everything fails hopeless I once called this the worst failure of an order of magnitude estimate in the history of science does it bother us absolutely finding that the amount of energy in space is so much less than our theory predicts is not just an academic problem the precise strength of that repulsive gravity well that has profound implications for all of us for example if I were to increase the strength of the dark energy just a little bit by erasing four or five of these zeros I still have a tiny number but the universe would be radically different that's because a slightly stronger dark energy would push everything apart so fast that stars planets and galaxies would never have formed and that means we simply would not exist and yet here we are so why is the amount of dark energy so much less than our theory predicts and also just right to allow the formation of galaxies stars planets and life we just don't know the mismatch between the theoretical predictions of dark energy and what astronomers have observed is one of the great mysteries at science faces today