Scientists Weigh a Star Using Gravity, Proving Einstein Wrong by Proving Him Right
Albert Einstein’s theory of gravity, called general relativity, is probably the best physics theory ever formulated. It just keeps working, often for things Einstein himself didn’t believe, like the accelerating expansion of the universe. Scientists only just proved some of its crazy predictions, like gravitational waves. But in the 1930s, Einstein’s friend R.W. Mandl visited…
