Astronomers just achieved something Einstein said was impossible

via Principia Scientific International
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Albert Einstein himself believed it couldn’t be done. A few decades after he published his theory of general relativity, a colleague asked the famous physicist whether the concept could be used to calculate the weight of a star. Theoretically, yes, was his reply. If one star passed in front of another, the closer star’s mass would distort the […]

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June 13, 2017 at 12:58AM