A star near the centre of our galaxy reaches almost 3 per cent of the speed of light as it is whipped around something four million times the mass of the Sun that emits no light of its own — and tracking its orbit for nearly three decades helped two astronomers win a Nobel Prize

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Decades of watching a star dance around an invisible cosmic anchor proved what physics predicted and earned astronomy's highest honour. The post A star near the centre of our galaxy reaches almost 3 per cent of the speed of light as it is whipped around something four million times the mass of the Sun that emits no light of its own — and tracking its orbit for nearly three decades helped two astronomers win a Nobel Prize appeared first on Space Daily .