Physicists create a mathematical model of a viable time machine
Scientists completed their observations of the black hole Sagittarius A* using the Event Horizon Telescope on April 11 2017, which used radio waves in numerous observatories across the globe to gather its data. After months of compiling the data, we should be able to see a photograph of the event horizon—the edge of where no light or matter can escape—and surrounding light or gases, giving some answers about the nature of black holes.
Einstein’s theory of relativity has survived over a hundred years, having been put to rigorous testing and come out unscathed. But recent conclusions on the accelerating expansion of the universe corroborate a further idea Einstein had posited–and rejected–nearly a century ago.