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In 1916, Albert Einstein looked almost six billion years into the past, and saw the state of the universe correctly. From The Telegraph:
A new study of the movement of faraway galaxies has opened a window on a time billions of years ago when the universe's rate of expansion began speeding up.
Detailed observations of the changing distance between galaxies revealed that the mysterious acceleration of space, which began five to six billion years ago, perfectly matched predictions made by Einstein in 1916.
The new measurements, presented at the National Astronomy Meeting in Manchester, show that the universe is expanding at an ever-increasing rate and that the structures within it, such as galaxy clusters, are also growing.
The findings match Einstein's general theory of relativity in which he proposed the rate at which galaxies should be drawn towards one another and at which the universe ought to expand.